--- a/tools/trace-malloc/lib/nsWinTraceMalloc.cpp
+++ b/tools/trace-malloc/lib/nsWinTraceMalloc.cpp
@@ -12,27 +12,17 @@
 #include "nscore.h"
 
 #include "nsDebugHelpWin32.h"
 #include "nsTraceMallocCallbacks.h"
 
 /***************************************************************************/
 // shows how to use the dhw stuff to hook imported functions
 
-#if _MSC_VER < 1300
-#define NS_DEBUG_CRT "MSVCRTD.dll"
-#elif _MSC_VER == 1300
-#define NS_DEBUG_CRT "msvcr70d.dll"
-#elif _MSC_VER == 1310
-#define NS_DEBUG_CRT "msvcr71d.dll"
-#elif _MSC_VER == 1400
-#define NS_DEBUG_CRT "msvcr80d.dll"
-#elif _MSC_VER == 1500
-#define NS_DEBUG_CRT "msvcr90d.dll"
-#elif _MSC_VER == 1600
+#if _MSC_VER == 1600
 #define NS_DEBUG_CRT "msvcr100d.dll"
 #elif _MSC_VER == 1700
 #define NS_DEBUG_CRT "msvcr110d.dll"
 #elif _MSC_VER == 1800
 #define NS_DEBUG_CRT "msvcr120d.dll"
 #else
 #error "Don't know filename of MSVC debug library."
 #endif