diff --git a/dlls/msvcrt40/Makefile.in b/dlls/msvcrt40/Makefile.in
index 6f33b83..5d84a1c 100644
--- a/dlls/msvcrt40/Makefile.in
+++ b/dlls/msvcrt40/Makefile.in
@@ -7,6 +7,9 @@ MODULE    = msvcrt40.dll
 IMPORTLIB = libmsvcrt40.$(IMPLIBEXT)
 IMPORTS   = msvcrt kernel32
 
+C_SRCS = \
+        msvcrt40.c
+
 @MAKE_DLL_RULES@
 
 @DEPENDENCIES@  # everything below this line is overwritten by make depend
diff --git a/dlls/msvcrt40/msvcrt40.c b/dlls/msvcrt40/msvcrt40.c
new file mode 100644
index 0000000..48e4af0
--- /dev/null
+++ b/dlls/msvcrt40/msvcrt40.c
@@ -0,0 +1,42 @@
+/*
+ * msvcrt40 main file
+ *
+ * Copyright (C) 2007 Louis Lenders
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+
+#include "windef.h"
+#include "winbase.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(msvcrt40);
+
+BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
+{
+   switch (reason)
+   {
+   case DLL_WINE_PREATTACH:
+       return FALSE;  /* prefer native version */
+   case DLL_PROCESS_ATTACH:
+       DisableThreadLibraryCalls( inst );
+       break;
+    case DLL_PROCESS_DETACH:
+        break;
+   }
+   return TRUE;
+}