diff --git a/modules/database/src/ioc/as/Makefile b/modules/database/src/ioc/as/Makefile
index bef8637e59..b9630780e5 100644
--- a/modules/database/src/ioc/as/Makefile
+++ b/modules/database/src/ioc/as/Makefile
@@ -16,10 +16,12 @@ SRC_DIRS += $(IOCDIR)/as
 INC += asDbLib.h
 INC += asCa.h
 INC += asIocRegister.h
+INC += asTrapWrite.h
 
 dbCore_SRCS += asDbLib.c
 dbCore_SRCS += asCa.c
 dbCore_SRCS += asIocRegister.c
+dbCore_SRCS += asTrapWrite.c
 
 PROD_HOST += ascheck
 ascheck_SRCS = ascheck.c
diff --git a/modules/database/src/ioc/as/asDbLib.h b/modules/database/src/ioc/as/asDbLib.h
index aeef3f2d55..eea7aa5380 100644
--- a/modules/database/src/ioc/as/asDbLib.h
+++ b/modules/database/src/ioc/as/asDbLib.h
@@ -16,6 +16,7 @@
 
 #include "callback.h"
 #include "dbCoreAPI.h"
+#include "asTrapWrite.h"
 
 typedef struct {
     epicsCallback   callback;
diff --git a/modules/database/src/ioc/as/asTrapWrite.h b/modules/database/src/ioc/as/asTrapWrite.h
index 0d9f4d99b6..1d21209177 100644
--- a/modules/database/src/ioc/as/asTrapWrite.h
+++ b/modules/database/src/ioc/as/asTrapWrite.h
@@ -20,7 +20,7 @@
 #ifndef INCasTrapWriteh
 #define INCasTrapWriteh
 
-#include "libComAPI.h"
+#include "dbCoreAPI.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -79,15 +79,46 @@ typedef void(*asTrapWriteListener)(asTrapWriteMessage *pmessage,int after);
  * \param func The listener function to be called.
  * \return A listener identifier for unregistering this listener.
  */
-LIBCOM_API asTrapWriteId epicsStdCall asTrapWriteRegisterListener(
+DBCORE_API
+asTrapWriteId epicsStdCall asTrapWriteRegisterListener(
     asTrapWriteListener func);
 /**
  * \brief Unregister asTrapWriteListener.
  * \param id Listener identifier from asTrapWriteRegisterListener().
  */
-LIBCOM_API void epicsStdCall asTrapWriteUnregisterListener(
+DBCORE_API
+void epicsStdCall asTrapWriteUnregisterListener(
     asTrapWriteId id);
 
+DBCORE_API
+void * epicsStdCall asTrapWriteBeforeWithData(
+    const char *userid, const char *hostid, void *addr,
+    int dbrType, int no_elements, void *data);
+
+DBCORE_API
+void epicsStdCall asTrapWriteAfterWrite(void *pvt);
+
+/* More convenience macros
+void *asTrapWriteWithData(ASCLIENTPVT asClientPvt,
+     const char *userid, const char *hostid, void *addr,
+     int dbrType, int no_elements, void *data);
+void asTrapWriteAfter(ASCLIENTPVT asClientPvt);
+*/
+#define asTrapWriteWithData(asClientPvt, user, host, addr, type, count, data) \
+    ((asActive && (asClientPvt)->trapMask) \
+    ? asTrapWriteBeforeWithData((user), (host), (addr), (type), (count), (data)) \
+    : 0)
+#define asTrapWriteAfter(pvt) \
+    if (pvt) asTrapWriteAfterWrite(pvt)
+
+/* This macro is for backwards compatibility, upgrade any code
+   calling it to use asTrapWriteWithData() instead ASAP:
+void *asTrapWriteBefore(ASCLIENTPVT asClientPvt,
+     const char *userid, const char *hostid, void *addr);
+*/
+#define asTrapWriteBefore(asClientPvt, user, host, addr) \
+    asTrapWriteWithData(asClientPvt, user, host, addr, 0, 0, NULL)
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/modules/libcom/src/as/Makefile b/modules/libcom/src/as/Makefile
index 65f7520187..e293b08078 100644
--- a/modules/libcom/src/as/Makefile
+++ b/modules/libcom/src/as/Makefile
@@ -14,9 +14,7 @@
 SRC_DIRS += $(LIBCOM)/as
 
 INC += asLib.h
-INC += asTrapWrite.h
 
 Com_SRCS += asLib.c
-Com_SRCS += asTrapWrite.c
 
 CLEANS += asLib.c asLib_lex.c
diff --git a/modules/libcom/src/as/asLib.h b/modules/libcom/src/as/asLib.h
index 9c47790ebe..73a482a62f 100644
--- a/modules/libcom/src/as/asLib.h
+++ b/modules/libcom/src/as/asLib.h
@@ -46,27 +46,6 @@ long asCheckPut(ASCLIENTPVT asClientPvt);
 #define asCheckPut(asClientPvt) \
     (!asActive || ((asClientPvt)->access >= asWRITE))
 
-/* More convenience macros
-void *asTrapWriteWithData(ASCLIENTPVT asClientPvt,
-     const char *userid, const char *hostid, void *addr,
-     int dbrType, int no_elements, void *data);
-void asTrapWriteAfter(ASCLIENTPVT asClientPvt);
-*/
-#define asTrapWriteWithData(asClientPvt, user, host, addr, type, count, data) \
-    ((asActive && (asClientPvt)->trapMask) \
-    ? asTrapWriteBeforeWithData((user), (host), (addr), (type), (count), (data)) \
-    : 0)
-#define asTrapWriteAfter(pvt) \
-    if (pvt) asTrapWriteAfterWrite(pvt)
-
-/* This macro is for backwards compatibility, upgrade any code
-   calling it to use asTrapWriteWithData() instead ASAP:
-void *asTrapWriteBefore(ASCLIENTPVT asClientPvt,
-     const char *userid, const char *hostid, void *addr);
-*/
-#define asTrapWriteBefore(asClientPvt, user, host, addr) \
-    asTrapWriteWithData(asClientPvt, user, host, addr, 0, 0, NULL)
-
 
 LIBCOM_API long epicsStdCall asInitialize(ASINPUTFUNCPTR inputfunction);
 LIBCOM_API long epicsStdCall asInitFile(
@@ -120,12 +99,6 @@ LIBCOM_API int epicsStdCall asDumpMemFP(FILE *fp,const char *asgname,
 LIBCOM_API int epicsStdCall asDumpHash(void);
 LIBCOM_API int epicsStdCall asDumpHashFP(FILE *fp);
 
-LIBCOM_API void * epicsStdCall asTrapWriteBeforeWithData(
-    const char *userid, const char *hostid, void *addr,
-    int dbrType, int no_elements, void *data);
-
-LIBCOM_API void epicsStdCall asTrapWriteAfterWrite(void *pvt);
-
 #define S_asLib_clientsExist    (M_asLib| 1) /*Client Exists*/
 #define S_asLib_noUag           (M_asLib| 2) /*User Access Group does not exist*/
 #define S_asLib_noHag           (M_asLib| 3) /*Host Access Group does not exist*/