diff --git a/direct/src/plugin_activex/stdafx.h b/direct/src/plugin_activex/stdafx.h
index e23d8c004e..fea9ac8091 100644
--- a/direct/src/plugin_activex/stdafx.h
+++ b/direct/src/plugin_activex/stdafx.h
@@ -14,8 +14,8 @@
 #define WINVER 0x0400       // Change this to the appropriate value to target Windows 98 and Windows 2000 or later.
 #endif
 
-#ifndef _WIN32_WINNT        // Allow use of features specific to Windows NT 4 or later.
-#define _WIN32_WINNT 0x0403 // Change this to the appropriate value to target Windows 2000 or later.
+#ifndef _WIN32_WINNT        // Allow use of features specific to Windows XP or later.
+#define _WIN32_WINNT 0x0501 // Change this to the appropriate value to target Windows 2000 or later.
 #endif
 
 #ifndef _WIN32_WINDOWS      // Allow use of features specific to Windows 98 or later.