diff --git a/src/db/dbChannelIO.cpp b/src/db/dbChannelIO.cpp
index 27aa12486..306d822d3 100644
--- a/src/db/dbChannelIO.cpp
+++ b/src/db/dbChannelIO.cpp
@@ -27,24 +27,11 @@
 #include "db_access_routines.h"
 #include "dbCAC.h"
 #include "dbChannelIOIL.h"
-#include "dbNotifyBlockerIL.h"
-
-#if defined ( _MSC_VER )
-#   pragma warning ( push )
-#   pragma warning ( disable: 4660 )
-#endif
-
-template class tsFreeList < dbChannelIO >;
-
-#if defined ( _MSC_VER )
-#   pragma warning ( pop )
-#endif
+#include "dbPutNotifyBlocker.h"
 
 tsFreeList < dbChannelIO > dbChannelIO::freeList;
-epicsMutex dbChannelIO::freeListMutex;
 unsigned dbChannelIO::nextIdForIO;
 
-
 dbChannelIO::dbChannelIO ( cacChannelNotify &notify, 
     const dbAddr &addrIn, dbServiceIO &serviceIO ) :
     cacChannel ( notify ), serviceIO ( serviceIO ),