diff --git a/.appveyor.yml b/.appveyor.yml
new file mode 100644
index 0000000..4bfc45c
--- /dev/null
+++ b/.appveyor.yml
@@ -0,0 +1,159 @@
+# .appveyor.yml for testing EPICS Base ci-scripts
+# (see: https://github.com/epics-base/ci-scripts)
+
+# Note:
+# Paths to scripts are different in this test configuration
+# (your module has one more directory level: .ci)
+
+# Ralph Lange <ralph.lange@gmx.de>
+# Copyright (c) 2020 ITER Organization
+
+#---------------------------------#
+#       build cache               #
+#---------------------------------#
+
+cache:
+  - C:\Users\appveyor\.tools -> appveyor\do.py
+
+#---------------------------------#
+#       additional packages       #
+#---------------------------------#
+
+install:
+# for the sequencer
+  - cinst re2c
+
+#---------------------------------#
+#       repository cloning        #
+#---------------------------------#
+
+# Called at very beginning, before repo cloning
+init:
+  # Set autocrlf to make batch files work
+  - git config --global core.autocrlf true
+
+# Set clone depth (do not fetch complete history)
+clone_depth: 50
+
+# Skipping commits affecting only specific files
+skip_commits:
+  files:
+    - 'documentation/*'
+    - 'templates/*'
+    - '**/*.html'
+    - '**/*.md'
+
+
+#---------------------------------#
+#   build matrix configuration    #
+#---------------------------------#
+
+# Build Configurations: dll/static, regular/debug
+configuration:
+  - dynamic
+  - static
+  - dynamic-debug
+  - static-debug
+
+# Environment variables: compiler toolchain, base version, setup file, ...
+environment:
+  # common / default variables for all jobs
+  SETUP_PATH: .:.ci
+  SET: test01
+  BASE_RECURSIVE: NO
+  VV: 1
+
+  matrix:
+  - CMP: vs2019
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    SET: test00
+  - CMP: mingw
+  - CMP: vs2019
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    VV: 0
+  - CMP: vs2019
+    BASE: 3.15
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+  - CMP: vs2019
+    BASE: 3.14
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+  - CMP: vs2017
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+  - CMP: vs2015
+  - CMP: vs2013
+  - CMP: vs2012
+  - CMP: vs2010
+  - CMP: vs2008
+
+# Platform: architecture
+platform:
+  - x86
+  - x64
+
+# Matrix configuration: allow specific failing jobs
+matrix:
+  exclude:
+  # Run test00 only once: x64 dynamic
+  - platform: x86
+    SET: test00
+  - configuration: static
+    SET: test00
+  - configuration: dynamic-debug
+    SET: test00
+  - configuration: static-debug
+    SET: test00
+  # VS2012 and older installs don't have the 64 bit compiler
+  - platform: x64
+    CMP: vs2012
+  - platform: x64
+    CMP: vs2010
+  - platform: x64
+    CMP: vs2008
+
+# Run test script for unit tests (SET = test00)
+for:
+-
+  matrix:
+    only:
+      - SET: test00
+  build_script:
+    - cmd: python appveyor-test.py
+  test_script:
+    - cmd: echo Tests have been run in the build phase
+
+#---------------------------------#
+#     building & testing          #
+#---------------------------------#
+
+build_script:
+  - cmd: python appveyor/do.py prepare
+  - cmd: python appveyor/do.py build
+
+test_script:
+  - cmd: python appveyor/do.py test
+
+#---------------------------------#
+#         debugging               #
+#---------------------------------#
+
+## if you want to connect by remote desktop to a failed build, uncomment these lines
+## note that you will need to connect within the usual build timeout limit (60 minutes)
+## so you may want to adjust the build matrix above to just build the one of interest
+
+#on_failure:
+#  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+#  - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+
+
+#---------------------------------#
+#         notifications           #
+#---------------------------------#
+
+notifications:
+
+#  - provider: Email
+#    to:
+#      - core-talk@aps.anl.gov
+#    on_build_success: false
+
+#  - provider: GitHubPullRequest
diff --git a/README.md b/README.md
index bcda044..ed7071f 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 <a target="_blank" href="http://semver.org">![Version][badge.version]</a>
 <a target="_blank" href="https://travis-ci.org/epics-base/ci-scripts">![Travis status][badge.travis]</a>
+<a target="_blank" href="https://ci.appveyor.com/project/epics-base/ci-scripts">![AppVeyor status][badge.appveyor]</a>
 
 # Continuous Integration Scripts for EPICS Modules
 
@@ -56,11 +57,17 @@ example.
  - Compile on MacOS
  - Built dependencies are cached (for faster builds)
 
+### AppVeyor
+ - Use different compilers (Visual Studio, MinGW)
+ - Use different Visual Studio versions: \
+  2008, 2010, 2012, 2013, 2015, 2017, 2019
+ - Compile for Windows 32bit and 64bit
+
 ## How to Use the CI-Scripts
 
  1. Get an account on a supported CI service provider platform.
     (e.g. [Travis-CI](https://travis-ci.org/),
-    AppVeyor, Azure Pipelines...)
+    [AppVeyor](https://www.appveyor.com/), Azure Pipelines...)
 
     (More details in the specific README of the subdirectory.)
 
@@ -79,10 +86,10 @@ example.
 
     BASE=3.15
     ASYN=R4-34
-    SNCSEQ=R2-2-7
+    SNCSEQ=R2-2-8
     ```
     will compile against the EPICS Base 3.15 branch, the Sequencer
-    release 2.2.7 and release 4.34 of asyn.
+    release 2.2.8 and release 4.34 of asyn.
     (Any settings can be overridden from the specific job configuration
     in e.g. `.travis.yml`.)
 
@@ -214,16 +221,16 @@ This will make all builds (not just for your module) verbose.
 
 Update the submodule in `.ci` first, then change your CI configuration
 (if needed) and commit both to your module. E.g., to update your Travis
-setup to release 2.1.0 of ci-scripts:
+setup to release 2.2.1 of ci-scripts:
 ```bash
 cd .ci
-git pull origin v2.1.0
+git pull origin v2.2.1
 cd -
 git add .ci
   # if needed:
   edit .travis.yml
   git add .travis.yml
-git commit -m "Update ci-scripts submodule to v2.1.0"
+git commit -m "Update ci-scripts submodule to v2.2.1"
 ```
 
 Check the example configuration files inside ci-scripts (and their
@@ -266,6 +273,7 @@ in file LICENSE that is included with this distribution.
 <!-- Links -->
 [badge.version]: https://badge.fury.io/gh/epics-base%2Fci-scripts.svg
 [badge.travis]: https://travis-ci.org/epics-base/ci-scripts.svg?branch=master
+[badge.appveyor]: https://ci.appveyor.com/api/projects/status/xwdv8fpxu0byp3hn?svg=true
 
 [reddit.bash]: https://www.reddit.com/r/bash/comments/393oqv/why_is_the_version_of_bash_included_in_os_x_so_old/
 
diff --git a/appveyor-test.py b/appveyor-test.py
new file mode 100644
index 0000000..8d3001d
--- /dev/null
+++ b/appveyor-test.py
@@ -0,0 +1,394 @@
+#!/usr/bin/env python
+"""Module ci-scripts AppVeyor unit tests
+"""
+
+# SET=test00 in the environment (.appveyor.yml) runs the tests in this script
+# all other jobs are started as compile jobs
+
+from __future__ import print_function
+
+import sys, os, shutil, fileinput
+import distutils.util
+import re
+import subprocess as sp
+import unittest
+import logging
+from argparse import Namespace
+
+builddir = os.getcwd()
+
+def find_in_file(regex, filename):
+    file = open (filename, "r")
+    for line in file:
+        if re.search(regex, line):
+            return True
+    return False
+
+def getStringIO():
+    if (sys.version_info > (3, 0)):
+        import io
+        return io.StringIO()
+    else:
+        import StringIO
+        return StringIO.StringIO()
+
+sys.path.append('appveyor')
+import do
+
+# we're working with tags (detached heads) a lot: suppress advice
+do.call_git(['config', '--global', 'advice.detachedHead', 'false'])
+
+class TestSourceSet(unittest.TestCase):
+
+    def setUp(self):
+        os.environ['SETUP_PATH'] = '.:appveyor'
+        if 'BASE' in os.environ:
+            del os.environ['BASE']
+        do.clear_lists()
+        os.chdir(builddir)
+
+    def test_EmptySetupDirsPath(self):
+        del os.environ['SETUP_PATH']
+        self.assertRaisesRegexp(NameError, '\(SETUP_PATH\) is empty', do.source_set, 'test01')
+
+    def test_InvalidSetupName(self):
+        self.assertRaisesRegexp(NameError, 'does not exist in SETUP_PATH', do.source_set, 'xxdoesnotexistxx')
+
+    def test_ValidSetupName(self):
+        capturedOutput = getStringIO()
+        sys.stdout = capturedOutput
+        do.source_set('test01')
+        sys.stdout = sys.__stdout__
+        self.assertEqual(do.setup['BASE'], '7.0', 'BASE was not set to \'7.0\'')
+
+    def test_SetupDoesNotOverridePreset(self):
+        os.environ['BASE'] = 'foo'
+        capturedOutput = getStringIO()
+        sys.stdout = capturedOutput
+        do.source_set('test01')
+        sys.stdout = sys.__stdout__
+        self.assertEqual(do.setup['BASE'], 'foo',
+                         'Preset BASE was overridden by test01 setup (expected \'foo\' got {0})'
+                         .format(do.setup['BASE']))
+
+    def test_IncludeSetupFirstSetWins(self):
+        capturedOutput = getStringIO()
+        sys.stdout = capturedOutput
+        do.source_set('test02')
+        sys.stdout = sys.__stdout__
+        self.assertEqual(do.setup['BASE'], 'foo',
+                         'BASE set in test02 was overridden by test01 setup (expected \'foo\' got {0})'
+                         .format(do.setup['BASE']))
+        self.assertEqual(do.setup['FOO'], 'bar', 'Setting of single word does not work')
+        self.assertEqual(do.setup['FOO2'], 'bar bar2', 'Setting of multiple words does not work')
+        self.assertEqual(do.setup['FOO3'], 'bar bar2', 'Indented setting of multiple words does not work')
+        self.assertEqual(do.setup['SNCSEQ'], 'R2-2-7', 'Setup test01 was not included')
+
+    def test_DoubleIncludeGetsIgnored(self):
+        capturedOutput = getStringIO()
+        sys.stdout = capturedOutput
+        do.source_set('test03')
+        sys.stdout = sys.__stdout__
+        self.assertRegexpMatches(capturedOutput.getvalue(), 'Ignoring already included setup file')
+
+class TestUpdateReleaseLocal(unittest.TestCase):
+
+    release_local = os.path.join(do.cachedir, 'RELEASE.local')
+
+    def setUp(self):
+        if os.path.exists(self.release_local):
+            os.remove(self.release_local)
+        os.chdir(builddir)
+
+    def test_SetModule(self):
+        do.update_release_local('MOD1', '/foo/bar')
+        found = 0
+        for line in fileinput.input(self.release_local, inplace=1):
+            if 'MOD1=' in line:
+                self.assertEqual(line.strip(), 'MOD1=/foo/bar', 'MOD1 not set correctly')
+                found += 1
+        fileinput.close()
+        self.assertEqual(found, 1, 'MOD1 not written once to RELEASE.local (found {0})'.format(found))
+
+    def test_SetBaseAndMultipleModules(self):
+        do.update_release_local('EPICS_BASE', '/bar/foo')
+        do.update_release_local('MOD1', '/foo/bar')
+        do.update_release_local('MOD2', '/foo/bar2')
+        do.update_release_local('MOD1', '/foo/bar1')
+        found = {}
+        foundat = {}
+        for line in fileinput.input(self.release_local, inplace=1):
+            if 'MOD1=' in line:
+                self.assertEqual(line.strip(), 'MOD1=/foo/bar1',
+                                 'MOD1 not set correctly (expected \'MOD1=/foo/bar1\' found \'{0}\')'
+                                 .format(line))
+                if 'mod1' in found:
+                    found['mod1'] += 1
+                else:
+                    found['mod1'] = 1
+                foundat['mod1'] = fileinput.filelineno()
+            if 'MOD2=' in line:
+                self.assertEqual(line.strip(), 'MOD2=/foo/bar2',
+                                 'MOD2 not set correctly (expected \'MOD2=/foo/bar2\' found \'{0}\')'
+                                 .format(line))
+                if 'mod2' in found:
+                    found['mod2'] += 1
+                else:
+                    found['mod2'] = 1
+                foundat['mod2'] = fileinput.filelineno()
+            if 'EPICS_BASE=' in line:
+                self.assertEqual(line.strip(), 'EPICS_BASE=/bar/foo',
+                                 'EPICS_BASE not set correctly (expected \'EPICS_BASE=/bar/foo\' found \'{0}\')'
+                                 .format(line))
+                if 'base' in found:
+                    found['base'] += 1
+                else:
+                    found['base'] = 1
+                foundat['base'] = fileinput.filelineno()
+        fileinput.close()
+        self.assertEqual(found['mod1'], 1,
+                         'MOD1 does not appear once in RELEASE.local (found {0})'.format(found['mod1']))
+        self.assertEqual(found['mod2'], 1,
+                         'MOD2 does not appear once in RELEASE.local (found {0})'.format(found['mod2']))
+        self.assertEqual(found['base'], 1,
+                         'EPICS_BASE does not appear once in RELEASE.local (found {0})'.format(found['base']))
+        self.assertGreater(foundat['base'], foundat['mod2'],
+                           'EPICS_BASE (line {0}) appears before MOD2 (line {1})'
+                           .format(foundat['base'], foundat['mod2']))
+        self.assertGreater(foundat['mod2'], foundat['mod1'],
+                           'MOD2 (line {0}) appears before MOD1 (line {1})'.format(foundat['mod2'], foundat['mod1']))
+
+class TestAddDependencyUpToDateCheck(unittest.TestCase):
+
+    hash_3_15_6 = "ce7943fb44beb22b453ddcc0bda5398fadf72096"
+    location = os.path.join(do.cachedir, 'base-R3.15.6')
+    licensefile = os.path.join(location, 'LICENSE')
+    checked_file = os.path.join(location, 'checked_out')
+    release_file = os.path.join(location, 'configure', 'RELEASE')
+
+    def setUp(self):
+        os.environ['SETUP_PATH'] = '.:appveyor'
+        if os.path.exists(self.location):
+            shutil.rmtree(self.location, onerror=do.remove_readonly)
+        do.clear_lists()
+        os.chdir(builddir)
+        do.source_set('defaults')
+        do.complete_setup('BASE')
+
+    def test_MissingDependency(self):
+        do.setup['BASE'] = 'R3.15.6'
+        do.add_dependency('BASE')
+        self.assertTrue(os.path.exists(self.licensefile), 'Missing dependency was not checked out')
+        self.assertTrue(os.path.exists(self.checked_file), 'Checked-out commit marker was not written')
+        with open(self.checked_file, 'r') as bfile:
+            checked_out = bfile.read().strip()
+        bfile.close()
+        self.assertEqual(checked_out, self.hash_3_15_6,
+                         'Wrong commit of dependency checked out (expected=\"{0}\" found=\"{1}\")'
+                         .format(self.hash_3_15_6, checked_out))
+        self.assertFalse(find_in_file('include \$\(TOP\)/../RELEASE.local', self.release_file),
+                         'RELEASE in Base includes TOP/../RELEASE.local')
+
+    def test_UpToDateDependency(self):
+        do.setup['BASE'] = 'R3.15.6'
+        do.add_dependency('BASE')
+        os.remove(self.licensefile)
+        do.add_dependency('BASE')
+        self.assertFalse(os.path.exists(self.licensefile), 'Check out on top of existing up-to-date dependency')
+
+    def test_OutdatedDependency(self):
+        do.setup['BASE'] = 'R3.15.6'
+        do.add_dependency('BASE')
+        os.remove(self.licensefile)
+        with open(self.checked_file, "w") as fout:
+            print('XXX not the right hash XXX', file=fout)
+        fout.close()
+        do.add_dependency('BASE')
+        self.assertTrue(os.path.exists(self.licensefile), 'No check-out on top of out-of-date dependency')
+        with open(self.checked_file, 'r') as bfile:
+            checked_out = bfile.read().strip()
+        bfile.close()
+        self.assertEqual(checked_out, self.hash_3_15_6,
+                         "Wrong commit of dependency checked out (expected='{0}' found='{1}')"
+                         .format(self.hash_3_15_6, checked_out))
+
+def is_shallow_repo(place):
+    check = sp.check_output(['git', 'rev-parse', '--is-shallow-repository'], cwd=place).strip()
+    if check == '--is-shallow-repository':
+        if os.path.exists(os.path.join(place, '.git', 'shallow')):
+            check = 'true'
+        else:
+            check = 'false'
+    return check == 'true'
+
+class TestAddDependencyOptions(unittest.TestCase):
+
+    location = os.path.join(do.cachedir, 'mcoreutils-master')
+    testfile = os.path.join(location, '.ci', 'LICENSE')
+
+    def setUp(self):
+        os.environ['SETUP_PATH'] = '.:appveyor'
+        if os.path.exists(do.cachedir):
+            shutil.rmtree(do.cachedir, onerror=do.remove_readonly)
+        do.clear_lists()
+        do.source_set('defaults')
+        do.complete_setup('MCoreUtils')
+        do.setup['MCoreUtils'] = 'master'
+
+    def test_Default(self):
+        do.add_dependency('MCoreUtils')
+        self.assertTrue(os.path.exists(self.testfile),
+                        'Submodule (.ci) not checked out recursively (requested: default=YES')
+        self.assertTrue(is_shallow_repo(self.location),
+                        'Module not checked out shallow (requested: default=5)')
+
+    def test_SetRecursiveNo(self):
+        do.setup['MCoreUtils_RECURSIVE'] = 'NO'
+        do.add_dependency('MCoreUtils')
+        self.assertFalse(os.path.exists(self.testfile), 'Submodule (.ci) checked out recursively')
+
+    def test_SetDepthZero(self):
+        do.setup['MCoreUtils_DEPTH'] = '0'
+        do.add_dependency('MCoreUtils')
+        self.assertFalse(is_shallow_repo(self.location), 'Module checked out shallow (requested full)')
+
+    def test_SetDepthThree(self):
+        do.setup['MCoreUtils_DEPTH'] = '3'
+        do.add_dependency('MCoreUtils')
+        self.assertTrue(is_shallow_repo(self.location),
+                        'Module not checked out shallow (requested: default=5)')
+
+    def test_AddMsiTo314(self):
+        do.complete_setup('BASE')
+        do.setup['BASE'] = 'R3.14.12.1'
+        msifile = os.path.join(do.cachedir, 'base-R3.14.12.1', 'src', 'dbtools', 'msi.c')
+        do.add_dependency('BASE')
+        self.assertTrue(os.path.exists(msifile), 'MSI was not added to Base 3.14')
+
+def repo_access(dep):
+    do.set_setup_from_env(dep)
+    do.setup.setdefault(dep + "_DIRNAME", dep.lower())
+    do.setup.setdefault(dep + "_REPONAME", dep.lower())
+    do.setup.setdefault('REPOOWNER', 'epics-modules')
+    do.setup.setdefault(dep + "_REPOOWNER", do.setup['REPOOWNER'])
+    do.setup.setdefault(dep + "_REPOURL", 'https://github.com/{0}/{1}.git'
+                     .format(do.setup[dep + '_REPOOWNER'], do.setup[dep + '_REPONAME']))
+    with open(os.devnull, 'w') as devnull:
+        return do.call_git(['ls-remote', '--quiet', '--heads', do.setup[dep + '_REPOURL']],
+                       stdout=devnull, stderr=devnull)
+
+class TestDefaultModuleURLs(unittest.TestCase):
+
+    modules = ['BASE', 'PVDATA', 'PVACCESS', 'NTYPES',
+               'SNCSEQ', 'STREAM', 'ASYN', 'STD',
+               'CALC', 'AUTOSAVE', 'BUSY', 'SSCAN',
+               'IOCSTATS', 'MOTOR', 'IPAC', ]
+
+    def setUp(self):
+        os.environ['SETUP_PATH'] = '.:appveyor'
+        do.clear_lists()
+        os.chdir(builddir)
+        do.source_set('defaults')
+
+    def test_Repos(self):
+        for mod in self.modules:
+            self.assertEqual(repo_access(mod), 0, 'Defaults for {0} do not point to a valid git repository at {1}'
+                             .format(mod, do.setup[mod + '_REPOURL']))
+
+class TestVCVars(unittest.TestCase):
+    def test_vcvars(self):
+        if ('CMP' in os.environ and os.environ['CMP'] in ('mingw',)) \
+                or distutils.util.get_platform() != "win32":
+            raise unittest.SkipTest()
+
+        do.with_vcvars('env')
+
+class TestSetupForBuild(unittest.TestCase):
+    configuration = os.environ['CONFIGURATION']
+    platform = os.environ['PLATFORM']
+    cc = os.environ['CMP']
+    args = Namespace(paths=[])
+
+    def setUp(self):
+        os.environ.pop('EPICS_HOST_ARCH', None)
+
+    def tearDown(self):
+        os.environ['CONFIGURATION'] = self.configuration
+        os.environ['PLATFORM'] = self.platform
+        os.environ['CMP'] = self.cc
+
+    def test_AddPathsOption(self):
+        os.environ['FOOBAR'] = 'BAR'
+        args = Namespace(paths=['/my/{FOOBAR}/dir', '/my/foobar'])
+        do.setup_for_build(args)
+        self.assertTrue(re.search('/my/BAR/dir', os.environ['PATH']), 'Expanded path not in PATH')
+        self.assertTrue(re.search('/foobar', os.environ['PATH']), 'Plain path not in PATH')
+        os.environ.pop('FOOBAR', None)
+
+    def test_HostArchConfiguration(self):
+        for config in ['dynamic', 'dynamic-debug', 'static', 'static-debug']:
+            os.environ['CONFIGURATION'] = config
+            do.setup_for_build(self.args)
+            self.assertTrue('EPICS_HOST_ARCH' in os.environ,
+                            'EPICS_HOST_ARCH is not set for Configuration={0}'.format(config))
+            if re.search('static', config):
+                self.assertTrue(re.search('-static$', os.environ['EPICS_HOST_ARCH']),
+                                'EPICS_HOST_ARCH is not -static for Configuration={0}'.format(config))
+                self.assertFalse(re.search('debug', os.environ['EPICS_HOST_ARCH']),
+                                 'EPICS_HOST_ARCH is -debug for Configuration={0}'.format(config))
+            elif re.search('debug', config):
+                self.assertFalse(re.search('static', os.environ['EPICS_HOST_ARCH']),
+                                 'EPICS_HOST_ARCH is -static for Configuration={0}'.format(config))
+                self.assertTrue(re.search('-debug$', os.environ['EPICS_HOST_ARCH']),
+                                'EPICS_HOST_ARCH is not -debug for Configuration={0}'.format(config))
+            else:
+                self.assertFalse(re.search('static', os.environ['EPICS_HOST_ARCH']),
+                                 'EPICS_HOST_ARCH is -static for Configuration={0}'.format(config))
+                self.assertFalse(re.search('debug', os.environ['EPICS_HOST_ARCH']),
+                                 'EPICS_HOST_ARCH is -debug for Configuration={0}'.format(config))
+
+    def test_HostArchPlatform(self):
+        for platform in ['x86', 'x64', 'X64']:
+            for cc in ['vs2019', 'mingw']:
+                os.environ['PLATFORM'] = platform
+                os.environ['CMP'] = cc
+                os.environ['CONFIGURATION'] = 'dynamic'
+                do.setup_for_build(self.args)
+                self.assertTrue('EPICS_HOST_ARCH' in os.environ,
+                                'EPICS_HOST_ARCH is not set for {0} / {1}'.format(cc, platform))
+                if platform == 'x86':
+                    self.assertTrue(re.search('^win32-x86', os.environ['EPICS_HOST_ARCH']),
+                                    'EPICS_HOST_ARCH is not win32-x86 for {0} / {1}'.format(cc, platform))
+                else:
+                    self.assertTrue(re.search('^windows-x64', os.environ['EPICS_HOST_ARCH']),
+                                    'EPICS_HOST_ARCH is not windows-x64 for {0} / {1}'.format(cc, platform))
+                if cc == 'mingw':
+                    self.assertTrue(re.search('-mingw$', os.environ['EPICS_HOST_ARCH']),
+                                    'EPICS_HOST_ARCH is not -mingw for {0} / {1}'.format(cc, platform))
+                    if platform == 'x86':
+                        pattern = 'mingw32'
+                    else:
+                        pattern = 'mingw64'
+                    self.assertTrue(re.search(pattern, os.environ['PATH']),
+                                    'Binary location for {0} not in PATH'.format(pattern))
+                    self.assertTrue(re.search(pattern, os.environ['INCLUDE']),
+                                    'Include location for {0} not in INCLUDE'.format(pattern))
+
+    def test_StrawberryInPath(self):
+        os.environ['CMP'] = 'vs2019'
+        do.setup_for_build(self.args)
+        self.assertTrue(re.search('strawberry', os.environ['PATH']),
+                        'Strawberry Perl location not in PATH for vs2019')
+
+
+if __name__ == "__main__":
+    if 'VV' in os.environ and os.environ['VV'] == '1':
+        logging.basicConfig(level=logging.DEBUG)
+        do.silent_dep_builds = False
+
+    do.host_info()
+    if sys.argv[1:]==['env']:
+        # testing with_vcvars
+        [print(K,'=',V) for K, V in os.environ.items()]
+    else:
+        unittest.main()
diff --git a/appveyor/.appveyor.yml.example-full b/appveyor/.appveyor.yml.example-full
new file mode 100644
index 0000000..d7f4972
--- /dev/null
+++ b/appveyor/.appveyor.yml.example-full
@@ -0,0 +1,151 @@
+# .appveyor.yml for use with EPICS Base ci-scripts
+# (see: https://github.com/epics-base/ci-scripts)
+
+# This is YAML - indentation levels are crucial
+
+#---------------------------------#
+#       build cache               #
+#---------------------------------#
+# The AppVeyor cache allowance is way too small (1GB per account across all projects, branches and jobs)
+# to be used for the dependency builds.
+
+cache:
+  - C:\Users\appveyor\.tools
+
+#---------------------------------#
+#       additional packages       #
+#---------------------------------#
+
+install:
+# for the sequencer
+  - cinst re2c
+
+#---------------------------------#
+#       repository cloning        #
+#---------------------------------#
+
+# Called at very beginning, before repo cloning
+init:
+  # Set autocrlf to make batch files work
+  - git config --global core.autocrlf true
+
+# Set clone depth (do not fetch complete history)
+clone_depth: 50
+
+# Skipping commits affecting only specific files
+skip_commits:
+  files:
+    - 'documentation/*'
+    - 'templates/*'
+    - '**/*.html'
+    - '**/*.md'
+
+#---------------------------------#
+#   build matrix configuration    #
+#---------------------------------#
+
+# Since dependencies cannot be cached and AppVeyor only grants a single builder VM, all jobs
+# are executed sequentially, each one taking 10-15 minutes.
+# Consider this when defining your build matrix. (A full matrix build takes more than 8 hours.)
+
+# Build Configurations: dll/static, regular/debug
+configuration:
+  - dynamic
+  - static
+  - dynamic-debug
+  - static-debug
+
+# Environment variables: compiler toolchain, base version, setup file, ...
+environment:
+  # common / default variables for all jobs
+  SETUP_PATH: .ci-local:.ci
+
+  matrix:
+  - CMP: vs2019
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    SET: test00
+  - CMP: mingw
+  - CMP: vs2019
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+  - CMP: vs2019
+    BASE: 3.15
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+  - CMP: vs2019
+    BASE: 3.14
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+  - CMP: vs2017
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+  - CMP: vs2015
+  - CMP: vs2013
+  - CMP: vs2012
+  - CMP: vs2010
+  - CMP: vs2008
+
+# Platform: processor architecture
+platform:
+  - x86
+  - x64
+
+# Matrix configuration: exclude sets of jobs
+matrix:
+  exclude:
+  # VS2012 and older installs don't have the 64 bit compiler
+  - platform: x64
+    CMP: vs2012
+  - platform: x64
+    CMP: vs2010
+  - platform: x64
+    CMP: vs2008
+  # Exclude more jobs to reduce build time
+  # E.g., skip 32-bit for newer compilers
+  #- platform: x86
+  #  CMP: vs2019
+  #- platform: x86
+  #  CMP: vs2017
+
+#---------------------------------#
+#     building & testing          #
+#---------------------------------#
+
+install:
+  - cmd: git submodule update --init --recursive
+  - cmd: python .ci/appveyor/do.py prepare
+
+build_script:
+  - cmd: python .ci/appveyor/do.py build
+
+test_script:
+  - cmd: python .ci/appveyor/do.py test
+
+on_finish:
+  - ps: Get-ChildItem *.tap -Recurse -Force | % { Push-AppveyorArtifact $_.FullName -FileName $_.Name }
+  - cmd: python .ci/appveyor/do.py build test-results -s
+
+#---------------------------------#
+#         debugging               #
+#---------------------------------#
+
+## if you want to connect by remote desktop to a failed build, uncomment these lines
+## note that you will need to connect within the usual build timeout limit (60 minutes)
+## so you may want to adjust the build matrix above to just build the one of interest
+
+# print the connection info
+#init:
+#  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+
+# block a failed build (until the watchdog barks)
+#on_failure:
+#  - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+
+#---------------------------------#
+#         notifications           #
+#---------------------------------#
+
+notifications:
+
+  - provider: Email
+    to:
+      - me@example.com
+    on_build_success: false
+
+  - provider: GitHubPullRequest
diff --git a/appveyor/.appveyor.yml.example-mini b/appveyor/.appveyor.yml.example-mini
new file mode 100644
index 0000000..1293751
--- /dev/null
+++ b/appveyor/.appveyor.yml.example-mini
@@ -0,0 +1,71 @@
+# .appveyor.yml for use with EPICS Base ci-scripts
+# (see: https://github.com/epics-base/ci-scripts)
+
+# This is YAML - indentation levels are crucial
+
+cache:
+  - C:\Users\appveyor\.tools
+
+init:
+  - git config --global core.autocrlf true
+
+clone_depth: 50
+
+skip_commits:
+  files:
+    - 'documentation/*'
+    - 'templates/*'
+    - '**/*.html'
+    - '**/*.md'
+
+# Build Configurations: dll/static, regular/debug
+configuration:
+  - dynamic
+#  - static
+  - dynamic-debug
+#  - static-debug
+
+environment:
+  # common / default variables for all jobs
+  SETUP_PATH: .ci-local:.ci
+
+  matrix:
+  - CMP: vs2019
+    BASE: 7.0
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+  - CMP: vs2019
+    BASE: 3.15
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+
+# Platform: processor architecture
+platform:
+#  - x86
+  - x64
+
+# Matrix configuration: exclude sets of jobs
+matrix:
+  exclude:
+  # VS2012 and older installs don't have the 64 bit compiler
+  - platform: x64
+    CMP: vs2012
+  - platform: x64
+    CMP: vs2010
+  - platform: x64
+    CMP: vs2008
+
+install:
+  - cmd: git submodule update --init --recursive
+  - cmd: python .ci/appveyor/do.py prepare
+
+build_script:
+  - cmd: python .ci/appveyor/do.py build
+
+test_script:
+  - cmd: python .ci/appveyor/do.py test
+
+on_finish:
+  - ps: Get-ChildItem *.tap -Recurse -Force | % { Push-AppveyorArtifact $_.FullName -FileName $_.Name }
+  - cmd: python .ci/appveyor/do.py build test-results -s
+
+notifications:
+  - provider: GitHubPullRequest
diff --git a/appveyor/README.md b/appveyor/README.md
new file mode 100644
index 0000000..d7e1175
--- /dev/null
+++ b/appveyor/README.md
@@ -0,0 +1,53 @@
+# AppVeyor Scripts for EPICS Modules
+
+## Features
+
+ - Use different compilers (Visual Studio, MinGW)
+ - Use different VS versions (2008, 2010, 2012, 2013, 2015, 2017, 2019)
+ - Compile for Windows 32bit and 64bit
+ - Create static libraries or DLLs (plus the matching executables)
+ - Create optimized or debug builds
+
+## How to Use these Scripts
+
+ 1. Get an account on [AppVeyor](https://www.appveyor.com/), connect
+    it to your GitHub account and activate your support module's
+    repository. For more details, please refer to the
+    [AppVeyor documentation](https://www.appveyor.com/docs/).
+
+ 2. Add the ci-scripts respository as a Git Submodule
+    (see [README](../README.md) one level above).
+
+ 3. Add settings files defining which dependencies in which versions
+    you want to build against
+    (see [README](../README.md) one level above).
+
+ 4. Create an AppVeyor configuration by copying one of the examples into
+    the root directory of your module.
+    ```
+    $ cp .ci/appveyor/.appveyor.yml.example-full .appveyor.yml
+    ```
+	
+ 5. Edit the `.appveyor.yml` configuration to include the jobs you want
+    AppVeyor to run.
+
+    AppVeyor automatically creates a build matrix with the following axes:
+    1. `configuration:` \
+    Select static or dynamic (DLL) as well as regular or debug builds.
+    2. `platform:` \
+    Select 32bit or 64bit processor architecture.
+    3. `environment: / matrix:` \
+    List of environment variable settings. Each list element (starting with
+    a dash) is one step on the axis of the build matrix.
+    
+    Your builds will take long.
+    
+    AppVeyor only grants a single worker VM - all jobs of the matrix are
+    executed sequentially. Each job will take around 10 minutes.
+    
+    The `matrix: / exclude:` setting can be used to reduce the number of
+    jobs. Check the [AppVeyor docs](https://www.appveyor.com/docs/build-configuration/#build-matrix)
+    for more ways to reduce the build matrix size.
+	
+ 6. Push your changes and check
+    [ci.appveyor.com](https://ci.appveyor.com/) for your build results.
diff --git a/appveyor/do.py b/appveyor/do.py
new file mode 100644
index 0000000..d4d4e35
--- /dev/null
+++ b/appveyor/do.py
@@ -0,0 +1,629 @@
+#!/usr/bin/env python
+"""Windows (AppVeyor) ci build script
+"""
+
+from __future__ import print_function
+
+import sys, os, stat, shutil
+import fileinput
+import logging
+import re
+import subprocess as sp
+import distutils.util
+
+logger = logging.getLogger(__name__)
+
+# Setup ANSI Colors
+ANSI_RED = "\033[31;1m"
+ANSI_GREEN = "\033[32;1m"
+ANSI_YELLOW = "\033[33;1m"
+ANSI_BLUE = "\033[34;1m"
+ANSI_MAGENTA = "\033[35;1m"
+ANSI_CYAN = "\033[36;1m"
+ANSI_RESET = "\033[0m"
+ANSI_CLEAR = "\033[0K"
+
+seen_setups = []
+modules_to_compile = []
+setup = {}
+places = {}
+
+if 'HomeDrive' in os.environ:
+    cachedir = os.path.join(os.getenv('HomeDrive'), os.getenv('HomePath'), '.cache')
+    toolsdir = os.path.join(os.getenv('HomeDrive'), os.getenv('HomePath'), '.tools')
+elif 'HOME' in os.environ:
+    cachedir = os.path.join(os.getenv('HOME'), '.cache')
+    toolsdir = os.path.join(os.getenv('HOME'), '.tools')
+else:
+    cachedir = os.path.join('.', '.cache')
+    toolsdir = os.path.join('.', '.tools')
+
+if 'CACHEDIR' in os.environ:
+    cachedir = os.environ['CACHEDIR']
+
+ciscriptsdir = os.path.abspath(os.path.dirname(sys.argv[0]))
+if os.path.basename(ciscriptsdir) == 'appveyor':
+    ciscriptsdir = ciscriptsdir.rstrip(os.pathsep+'appveyor')
+
+def modlist():
+    for var in ['ADD_MODULES', 'MODULES']:
+        setup.setdefault(var, '')
+        if var in os.environ:
+            setup[var] = os.environ[var]
+            logger.debug('ENV assignment: %s = %s', var, setup[var])
+    ret = ['BASE'] + setup['ADD_MODULES'].upper().split() + setup['MODULES'].upper().split()
+    logger.debug('Effective module list: %s', ret)
+    return ret
+
+zip7 = r'C:\Program Files\7-Zip\7z'
+make = ''
+isbase314 = False
+silent_dep_builds = True
+
+def host_info():
+    print('{0}Python setup{1}'.format(ANSI_CYAN, ANSI_RESET))
+    print(sys.version)
+    print('PYTHONPATH')
+    for dname in sys.path:
+        print(' ', dname)
+    print('platform =', distutils.util.get_platform())
+
+    print('{0}Available Visual Studio versions{1}'.format(ANSI_CYAN, ANSI_RESET))
+    from fnmatch import fnmatch
+    for base in (r'C:\Program Files (x86)', r'C:\Program Files'):
+        for root, dirs, files in os.walk(base):
+            for fname in files:
+                if fnmatch(fname, 'vcvarsall.bat'):
+                    print('Found', os.path.join(root, fname))
+    sys.stdout.flush()
+
+# Used from unittests
+def clear_lists():
+    del seen_setups[:]
+    del modules_to_compile[:]
+    setup.clear()
+    places.clear()
+
+# Error-handler to make shutil.rmtree delete read-only files on Windows
+def remove_readonly(func, path, excinfo):
+    os.chmod(path, stat.S_IWRITE)
+    func(path)
+
+# source_set(setup)
+#
+# Source a settings file (extension .set) found in the setup_dirs path
+# May be called recursively (from within a setup file)
+def source_set(name):
+    # allowed separators: colon or whitespace
+    setup_dirs = os.getenv('SETUP_PATH', "").replace(':', ' ').split()
+    if len(setup_dirs) == 0:
+        raise NameError("{0}Search path for setup files (SETUP_PATH) is empty{1}".format(ANSI_RED,ANSI_RESET))
+
+    for set_dir in setup_dirs:
+        set_file = os.path.join(set_dir, name) + ".set"
+
+        if set_file in seen_setups:
+            print("Ignoring already included setup file {0}".format(set_file))
+            return
+
+        if os.path.isfile(set_file):
+            seen_setups.append(set_file)
+            print("Loading setup file {0}".format(set_file))
+            sys.stdout.flush()
+            with open(set_file) as fp:
+                for line in fp:
+                    logger.debug('Next line: %s', line.strip())
+                    if not line.strip() or line.strip()[0] == '#':
+                        continue
+                    if line.startswith("include"):
+                        logger.debug('Found an include, reading %s', line.split()[1])
+                        source_set(line.split()[1])
+                        continue
+                    assign = line.replace('"', '').strip().split("=", 1)
+                    logger.debug('Interpreting as assignment')
+                    setup.setdefault(assign[0], os.getenv(assign[0], ""))
+                    if not setup[assign[0]].strip():
+                        logger.debug('Doing assignment: %s = %s', assign[0], assign[1])
+                        setup[assign[0]] = assign[1]
+            break
+    else:
+        raise NameError("{0}Setup file {1} does not exist in SETUP_PATH search path ({2}){3}"
+                        .format(ANSI_RED, name, setup_dirs, ANSI_RESET))
+
+# update_release_local(var, location)
+#   var       name of the variable to set in RELEASE.local
+#   location  location (absolute path) of where variable should point to
+#
+# Manipulate RELEASE.local in the cache location:
+# - replace "$var=$location" line if it exists and has changed
+# - otherwise add "$var=$location" line and possibly move EPICS_BASE=... line to the end
+# Set places[var] = location
+def update_release_local(var, location):
+    release_local = os.path.join(cachedir, 'RELEASE.local')
+    updated_line = '{0}={1}'.format(var, location.replace('\\', '/'))
+    places[var] = location
+
+    if not os.path.exists(release_local):
+        logger.debug('RELEASE.local does not exist, creating it')
+        try:
+            os.makedirs(cachedir)
+        except:
+            pass
+        fout = open(release_local, 'w')
+        fout.close()
+    base_line = ''
+    found = False
+    logger.debug("Opening RELEASE.local for adding '%s'", updated_line)
+    for line in fileinput.input(release_local, inplace=1):
+        outputline = line.strip()
+        if 'EPICS_BASE=' in line:
+            base_line = line.strip()
+            logger.debug("Found EPICS_BASE line '%s', not writing it", base_line)
+            continue
+        elif '{0}='.format(var) in line:
+            logger.debug("Found '%s=' line, replacing", var)
+            found = True
+            outputline = updated_line
+        logger.debug("Writing line to RELEASE.local: '%s'", outputline)
+        print(outputline)
+    fileinput.close()
+    fout = open(release_local,"a")
+    if not found:
+        logger.debug("Adding new definition: '%s'", updated_line)
+        print(updated_line, file=fout)
+    if base_line:
+        logger.debug("Writing EPICS_BASE line: '%s'", base_line)
+        print(base_line, file=fout)
+    fout.close()
+
+def set_setup_from_env(dep):
+    for postf in ['', '_DIRNAME', '_REPONAME', '_REPOOWNER', '_REPOURL',
+                  '_VARNAME', '_RECURSIVE', '_DEPTH', '_HOOK']:
+        if dep+postf in os.environ:
+            setup[dep+postf] = os.environ[dep+postf]
+            logger.debug('ENV assignment: %s = %s', dep+postf, setup[dep+postf])
+
+def call_git(args, **kws):
+    if 'cwd' in kws:
+        place = kws['cwd']
+    else:
+        place = os.getcwd()
+    logger.debug("EXEC '%s' in %s", ' '.join(['git'] + args), place)
+    sys.stdout.flush()
+    exitcode = sp.call(['git'] + args, **kws)
+    logger.debug('EXEC DONE')
+    return exitcode
+
+def call_make(args=[], **kws):
+    place = kws.get('cwd', os.getcwd())
+    parallel = kws.pop('parallel', 2)
+    silent = kws.pop('silent', False)
+    # no parallel make for Base 3.14
+    if parallel <= 0 or isbase314:
+        makeargs = []
+    else:
+        makeargs = ['-j{0}'.format(parallel), '-Otarget']
+    if silent:
+        makeargs += ['-s']
+    logger.debug("EXEC '%s' in %s", ' '.join([make] + makeargs + args), place)
+    sys.stdout.flush()
+    exitcode = sp.call([make] + makeargs + args, **kws)
+    logger.debug('EXEC DONE')
+    if exitcode != 0:
+        sys.exit(exitcode)
+
+def get_git_hash(place):
+    logger.debug("EXEC 'git log -n1 --pretty=format:%%H' in %s", place)
+    sys.stdout.flush()
+    head = sp.check_output(['git', 'log', '-n1', '--pretty=format:%H'], cwd=place).decode()
+    logger.debug('EXEC DONE')
+    return head
+
+def complete_setup(dep):
+    set_setup_from_env(dep)
+    setup.setdefault(dep, 'master')
+    setup.setdefault(dep+"_DIRNAME", dep.lower())
+    setup.setdefault(dep+"_REPONAME", dep.lower())
+    setup.setdefault('REPOOWNER', 'epics-modules')
+    setup.setdefault(dep+"_REPOOWNER", setup['REPOOWNER'])
+    setup.setdefault(dep+"_REPOURL", 'https://github.com/{0}/{1}.git'
+                     .format(setup[dep+'_REPOOWNER'], setup[dep+'_REPONAME']))
+    setup.setdefault(dep+"_VARNAME", dep)
+    setup.setdefault(dep+"_RECURSIVE", 'YES')
+    setup.setdefault(dep+"_DEPTH", -1)
+
+# add_dependency(dep, tag)
+#
+# Add a dependency to the cache area:
+# - check out (recursive if configured) in the CACHE area unless it already exists and the
+#   required commit has been built
+# - Defaults:
+#   $dep_DIRNAME = lower case ($dep)
+#   $dep_REPONAME = lower case ($dep)
+#   $dep_REPOURL = GitHub / $dep_REPOOWNER (or $REPOOWNER or epics-modules) / $dep_REPONAME .git
+#   $dep_VARNAME = $dep
+#   $dep_DEPTH = 5
+#   $dep_RECURSIVE = 1/YES (0/NO to for a flat clone)
+# - Add $dep_VARNAME line to the RELEASE.local file in the cache area (unless already there)
+# - Add full path to $modules_to_compile
+def add_dependency(dep):
+    recurse = setup[dep+'_RECURSIVE'].lower()
+    if recurse not in ['0', 'no']:
+        recursearg = ["--recursive"]
+    elif recurse not in ['1', 'yes']:
+        recursearg = []
+    else:
+        raise RuntimeError("Invalid value for {}_RECURSIVE='{}' not 0/NO/1/YES".format(dep, recurse))
+    deptharg = {
+        '-1':['--depth', '5'],
+        '0':[],
+    }.get(str(setup[dep+'_DEPTH']), ['--depth', str(setup[dep+'_DEPTH'])])
+
+    tag = setup[dep]
+
+    logger.debug('Adding dependency %s with tag %s', dep, setup[dep])
+
+    # determine if dep points to a valid release or branch
+    if call_git(['ls-remote', '--quiet', '--exit-code', '--refs', setup[dep+'_REPOURL'], tag]):
+        raise RuntimeError("{0}{1} is neither a tag nor a branch name for {2} ({3}){4}"
+                           .format(ANSI_RED, tag, dep, setup[dep+'_REPOURL'], ANSI_RESET))
+
+    dirname = setup[dep+'_DIRNAME']+'-{0}'.format(tag)
+    place = os.path.join(cachedir, dirname)
+    checked_file = os.path.join(place, "checked_out")
+
+    if os.path.isdir(place):
+        logger.debug('Dependency %s: directory %s exists, comparing checked-out commit', dep, place)
+        # check HEAD commit against the hash in marker file
+        if os.path.exists(checked_file):
+            with open(checked_file, 'r') as bfile:
+                checked_out = bfile.read().strip()
+            bfile.close()
+        else:
+            checked_out = 'never'
+        head = get_git_hash(place)
+        logger.debug('Found checked_out commit %s, git head is %s', checked_out, head)
+        if head != checked_out:
+            logger.debug('Dependency %s out of date - removing', dep)
+            shutil.rmtree(place, onerror=remove_readonly)
+        else:
+            print('Found {0} of dependency {1} up-to-date in {2}'.format(tag, dep, place))
+            sys.stdout.flush()
+
+    if not os.path.isdir(place):
+        if not os.path.isdir(cachedir):
+            os.makedirs(cachedir)
+        # clone dependency
+        print('Cloning {0} of dependency {1} into {2}'
+              .format(tag, dep, place))
+        sys.stdout.flush()
+        call_git(['clone', '--quiet'] + deptharg + recursearg + ['--branch', tag, setup[dep+'_REPOURL'], dirname], cwd=cachedir)
+
+        sp.check_call(['git', 'log', '-n1'], cwd=place)
+        modules_to_compile.append(place)
+
+        if dep == 'BASE':
+            # add MSI 1.7 to Base 3.14
+            versionfile = os.path.join(place, 'configure', 'CONFIG_BASE_VERSION')
+            if os.path.exists(versionfile):
+                with open(versionfile) as f:
+                    if 'BASE_3_14=YES' in f.read():
+                        print('Adding MSI 1.7 to {0}'.format(place))
+                        sys.stdout.flush()
+                        sp.check_call(['patch', '-p0', '-i', os.path.join(ciscriptsdir, 'add-msi-to-314.patch')],
+                                      cwd=place)
+        else:
+            # force including RELEASE.local for non-base modules by overwriting their configure/RELEASE
+            release = os.path.join(place, "configure", "RELEASE")
+            if os.path.exists(release):
+                with open(release, 'w') as fout:
+                    print('-include $(TOP)/../RELEASE.local', file=fout)
+
+        # run hook if defined
+        if dep+'_HOOK' in setup:
+            hook = os.path.join(place, setup[dep+'_HOOK'])
+            if os.path.exists(hook):
+                print('Running hook {0} in {1}'.format(setup[dep+'_HOOK'], place))
+                sys.stdout.flush()
+                sp.check_call(hook, shell=True, cwd=place)
+
+        # write checked out commit hash to marker file
+        head = get_git_hash(place)
+        logger.debug('Writing hash of checked-out dependency (%s) to marker file', head)
+        with open(checked_file, "w") as fout:
+            print(head, file=fout)
+        fout.close()
+
+    update_release_local(setup[dep+"_VARNAME"], place)
+
+def setup_for_build(args):
+    global make, isbase314
+    dllpaths = []
+
+    # there is no combined static and debug EPICS_HOST_ARCH target,
+    # so a combined debug and static target will appear to be just static
+    # but debug will have been specified in CONFIG_SITE by prepare()
+    hostarchsuffix=''
+    if re.search('debug', os.environ['CONFIGURATION']):
+        hostarchsuffix = '-debug'
+    if re.search('static', os.environ['CONFIGURATION']):
+        hostarchsuffix = '-static'
+
+    if os.environ['PLATFORM'].lower() == 'x86':
+        os.environ['EPICS_HOST_ARCH'] = 'win32-x86' + hostarchsuffix
+    elif os.environ['PLATFORM'].lower() == 'x64':
+        os.environ['EPICS_HOST_ARCH'] = 'windows-x64' + hostarchsuffix
+
+    if os.environ['CMP'] == 'vs2019':
+        # put our strawberry 'perl' in the PATH
+        os.environ['PATH'] = os.pathsep.join([os.path.join(toolsdir, 'strawberry', 'perl', 'site', 'bin'),
+                                              os.path.join(toolsdir, 'strawberry', 'perl', 'bin'),
+                                              os.environ['PATH']])
+    if os.environ['CMP'] == 'mingw':
+        if 'INCLUDE' not in os.environ:
+            os.environ['INCLUDE'] = ''
+        if os.environ['PLATFORM'].lower() == 'x86':
+            os.environ['EPICS_HOST_ARCH'] = 'win32-x86-mingw'
+            os.environ['INCLUDE'] = os.pathsep.join([r'C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\include',
+                                                     os.environ['INCLUDE']])
+            os.environ['PATH'] = os.pathsep.join([r'C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\bin',
+                                                  os.environ['PATH']])
+        elif os.environ['PLATFORM'].lower() == 'x64':
+            os.environ['EPICS_HOST_ARCH'] = 'windows-x64-mingw'
+            os.environ['INCLUDE'] = os.pathsep.join([r'C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\include',
+                                                     os.environ['INCLUDE']])
+            os.environ['PATH'] = os.pathsep.join([r'C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin',
+                                                  os.environ['PATH']])
+
+    make = os.path.join(toolsdir, 'make.exe')
+
+    with open(os.path.join(cachedir, 'RELEASE.local'), 'r') as f:
+        lines = f.readlines()
+        for line in lines:
+            (mod, place) = line.strip().split('=')
+            bindir = os.path.join(place, 'bin', os.environ['EPICS_HOST_ARCH'])
+            if os.path.isdir(bindir):
+                dllpaths.append(bindir)
+            if mod == 'EPICS_BASE':
+                base_place = place
+    with open(os.path.join(base_place, 'configure', 'CONFIG_BASE_VERSION')) as myfile:
+        if 'BASE_3_14=YES' in myfile.read():
+            isbase314 = True
+
+    bindir = os.path.join(os.getcwd(), 'bin', os.environ['EPICS_HOST_ARCH'])
+    if os.path.isdir(bindir):
+        dllpaths.append(bindir)
+
+    os.environ['PATH'] = os.pathsep.join(dllpaths + [os.environ['PATH']])
+
+    # apparently %CD% is handled automagically
+    os.environ['TOP'] = os.getcwd()
+
+    addpaths = []
+    for path in args.paths:
+        try:
+            addpaths.append(path.format(**os.environ))
+        except KeyError:
+            print('Environment')
+            [print('  ',K,'=',repr(V)) for K,V in os.environ.items()]
+            raise
+
+    os.environ['PATH'] = os.pathsep.join([os.environ['PATH']] + addpaths)
+
+def prepare(args):
+    host_info()
+
+    print('{0}Loading setup files{1}'.format(ANSI_YELLOW, ANSI_RESET))
+    source_set('defaults')
+    if 'SET' in os.environ:
+        source_set(os.environ['SET'])
+
+    [complete_setup(mod) for mod in modlist()]
+
+    logger.debug('Loaded setup')
+    kvs = list(setup.items())
+    kvs.sort()
+    [logger.debug(' %s = "%s"', *kv) for kv in kvs]
+
+    # we're working with tags (detached heads) a lot: suppress advice
+    call_git(['config', '--global', 'advice.detachedHead', 'false'])
+
+    print('{0}Checking/cloning dependencies{1}'.format(ANSI_YELLOW, ANSI_RESET))
+    sys.stdout.flush()
+
+    [add_dependency(mod) for mod in modlist()]
+
+    if os.path.isdir('configure'):
+        release_local = os.path.join(cachedir, 'RELEASE.local')
+        shutil.copy(release_local, 'configure')
+
+    print('{0}Configuring EPICS build system{1}'.format(ANSI_YELLOW, ANSI_RESET))
+
+    with open(os.path.join(places['EPICS_BASE'], 'configure', 'CONFIG_SITE'), 'a') as config_site:
+        if re.search('static', os.environ['CONFIGURATION']):
+            config_site.write('SHARED_LIBRARIES=NO\n')
+            config_site.write('STATIC_BUILD=YES\n')
+            linktype = 'static'
+        else:
+            linktype = 'dynamic (DLL)'
+        if re.search('debug', os.environ['CONFIGURATION']):
+            config_site.write('HOST_OPT=NO\n')
+            optitype = 'debug'
+        else:
+            optitype = 'optimized'
+
+    print('EPICS Base build system set up for {0} build with {1} linking'
+          .format(optitype, linktype))
+
+    if not os.path.isdir(toolsdir):
+        os.makedirs(toolsdir)
+
+    makever = '4.2.1'
+    if not os.path.exists(os.path.join(toolsdir, 'make.exe')):
+        print('Installing Make 4.2.1 from ANL web site')
+        sys.stdout.flush()
+        sp.check_call(['curl', '-fsS', '--retry', '3', '-o', 'make-{0}.zip'.format(makever),
+                       'https://epics.anl.gov/download/tools/make-{0}-win64.zip'.format(makever)],
+                      cwd=toolsdir)
+        sp.check_call([zip7, 'e', 'make-{0}.zip'.format(makever)], cwd=toolsdir)
+        os.remove(os.path.join(toolsdir, 'make-{0}.zip'.format(makever)))
+
+    perlver = '5.30.0.1'
+    if os.environ['CMP'] == 'vs2019':
+        if not os.path.isdir(os.path.join(toolsdir, 'strawberry')):
+            print('Installing Strawberry Perl {0}'.format(perlver))
+            sys.stdout.flush()
+            sp.check_call(['curl', '-fsS', '--retry', '3', '-o', 'perl-{0}.zip'.format(perlver),
+                           'http://strawberryperl.com/download/{0}/strawberry-perl-{0}-64bit.zip'.format(perlver)],
+                          cwd=toolsdir)
+            sp.check_call([zip7, 'x', 'perl-{0}.zip'.format(perlver), '-ostrawberry'], cwd=toolsdir)
+            os.remove(os.path.join(toolsdir, 'perl-{0}.zip'.format(perlver)))
+            with open(os.devnull, 'w') as devnull:
+                sp.check_call('relocation.pl.bat', shell=True, stdout=devnull,
+                              cwd=os.path.join(toolsdir, 'strawberry'))
+
+    setup_for_build(args)
+
+    print('{0}EPICS_HOST_ARCH = {1}{2}'.format(ANSI_CYAN, os.environ['EPICS_HOST_ARCH'], ANSI_RESET))
+    print('{0}$ {1} --version{2}'.format(ANSI_CYAN, make, ANSI_RESET))
+    sys.stdout.flush()
+    call_make(['--version'], parallel=0)
+    print('{0}$ perl --version{1}'.format(ANSI_CYAN, ANSI_RESET))
+    sys.stdout.flush()
+    sp.check_call(['perl', '--version'])
+
+    if os.environ['CMP'] == 'mingw':
+        print('{0}$ gcc --version{1}'.format(ANSI_CYAN, ANSI_RESET))
+        sys.stdout.flush()
+        sp.check_call(['gcc', '--version'])
+    else:
+        print('{0}$ cl{1}'.format(ANSI_CYAN, ANSI_RESET))
+        sys.stdout.flush()
+        sp.check_call(['cl'])
+
+    for mod in modlist():
+        place = places[setup[mod+"_VARNAME"]]
+        print('{0}Building dependency {1} in {2}{3}'.format(ANSI_YELLOW, mod, place, ANSI_RESET))
+        call_make(cwd=place, silent=silent_dep_builds)
+
+    print('{0}Dependency module information{1}'.format(ANSI_CYAN, ANSI_RESET))
+    print('Module     Tag          Binaries    Commit')
+    print(100 * '-')
+    for mod in modlist():
+        commit = sp.check_output(['git', 'log', '-n1', '--oneline'], cwd=places[setup[mod+"_VARNAME"]]).strip()
+        print("%-10s %-12s %-11s %s" % (mod, setup[mod], 'rebuilt', commit))
+
+    print('{0}Contents of RELEASE.local{1}'.format(ANSI_CYAN, ANSI_RESET))
+    with open(os.path.join(cachedir, 'RELEASE.local'), 'r') as f:
+        print(f.read().strip())
+
+def build(args):
+    setup_for_build(args)
+    print('{0}Building the main module{1}'.format(ANSI_YELLOW, ANSI_RESET))
+    call_make(args.makeargs)
+
+def test(args):
+    setup_for_build(args)
+    print('{0}Running the main module tests{1}'.format(ANSI_YELLOW, ANSI_RESET))
+    call_make(['tapfiles'], parallel=0)
+    call_make(['test-results'], parallel=0, silent=True)
+
+def doExec(args):
+    'exec user command with vcvars'
+    setup_for_build(args)
+    os.environ['MAKE'] = make
+    print('Execute command {}'.format(args.cmd))
+    sys.stdout.flush()
+    sp.check_call(' '.join(args.cmd), shell=True)
+
+def with_vcvars(cmd):
+    '''re-exec main script with a (hopefully different) command
+    '''
+    CC = os.environ['CMP']
+
+    # cf. https://docs.microsoft.com/en-us/cpp/build/building-on-the-command-line
+
+    info = {
+        'python':sys.executable,
+        'self':sys.argv[0],
+        'cmd':cmd,
+    }
+
+    info['arch'] = {
+        'x86':'x86',   # 'amd64_x86' ??
+        'x64':'amd64',
+    }[os.environ['PLATFORM'].lower()] # 'x86' or 'x64'
+
+    info['vcvars'] = {
+        # https://en.wikipedia.org/wiki/Microsoft_Visual_Studio#History
+        'vs2019':r'C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat',
+        'vs2017':r'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat',
+        'vs2015':r'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat',
+        'vs2013':r'C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat',
+        'vs2012':r'C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat',
+        'vs2010':r'C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat',
+        'vs2008':r'C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\vcvarsall.bat',
+    }[CC]
+
+    script='''
+call "{vcvars}" {arch}
+
+"{python}" "{self}" {cmd}
+'''.format(**info)
+
+    logger.debug('----- Creating vcvars-trampoline.bat -----')
+    for line in script.split('\n'):
+        logger.debug(line)
+    logger.debug('----- snip -----')
+
+    with open('vcvars-trampoline.bat', 'w') as F:
+        F.write(script)
+
+    print('{0}Calling vcvars-trampoline.bat to set environment for {1} on {2}{3}'
+          .format(ANSI_YELLOW, CC, os.environ['PLATFORM'], ANSI_RESET))
+    sys.stdout.flush()
+    returncode = sp.call('vcvars-trampoline.bat', shell=True)
+    if returncode != 0:
+        sys.exit(returncode)
+
+def getargs():
+    from argparse import ArgumentParser, REMAINDER
+    P = ArgumentParser()
+    P.add_argument('--no-vcvars', dest='vcvars', default=True, action='store_false',
+                   help='Assume vcvarsall.bat has already been run')
+    P.add_argument('--add-path', dest='paths', default=[], action='append',
+                   help='Append directory to %PATH%.  Expands {ENVVAR}')
+    SP = P.add_subparsers()
+
+    CMD = SP.add_parser('prepare')
+    CMD.set_defaults(func=prepare)
+
+    CMD = SP.add_parser('build')
+    CMD.add_argument('makeargs', nargs=REMAINDER)
+    CMD.set_defaults(func=build)
+
+    CMD = SP.add_parser('test')
+    CMD.set_defaults(func=test)
+
+    CMD = SP.add_parser('exec')
+    CMD.add_argument('cmd', nargs=REMAINDER)
+    CMD.set_defaults(func=doExec)
+
+    return P
+
+def main(raw):
+    global silent_dep_builds
+    args = getargs().parse_args(raw)
+    if 'VV' in os.environ and os.environ['VV'] == '1':
+        logging.basicConfig(level=logging.DEBUG)
+        silent_dep_builds = False
+
+    if args.vcvars and os.environ['CMP'].startswith('vs'):
+        # re-exec with MSVC in PATH
+        with_vcvars(' '.join(['--no-vcvars']+raw))
+
+    else:
+        args.func(args)
+
+if __name__=='__main__':
+    main(sys.argv[1:])