--- a/ooDialog/trunk/ooDialog/oodUtilities.cpp
+++ b/ooDialog/trunk/ooDialog/oodUtilities.cpp
@@ -783,7 +783,7 @@
         char buf[512];
 
         _snprintf(buf, 511, "The %s application requires Windows %s or\n"
-                            "later.  It can not run on %s\n", name, getWindowsName());
+                            "later.  It can not run on %s\n", name, os, getWindowsName());
 
         MessageBox(NULL, buf, "ooDialog Application Error", MB_OK | MB_ICONWARNING | MB_SETFOREGROUND);