Index: dll/win32/version/version.c
===================================================================
--- dll/win32/version/version.c	(revision 65753)
+++ dll/win32/version/version.c	(working copy)
@@ -952,6 +952,9 @@
         BOOL ret, isText;
         INT len;
         LPWSTR lpSubBlockW;
+        UINT dum = 0;
+        if (!puLen)
+            puLen = &dum;
 
         len  = MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, NULL, 0);
         lpSubBlockW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
@@ -965,7 +968,7 @@
 
         HeapFree(GetProcessHeap(), 0, lpSubBlockW);
 
-        if (ret && isText)
+        if (ret && isText && *puLen)
         {
             /* Set lpBuffer so it points to the 'empty' area where we store
              * the converted strings