Index: dll/cpl/desk/screensaver.c
===================================================================
--- dll/cpl/desk/screensaver.c	(revision 63108)
+++ dll/cpl/desk/screensaver.c	(working copy)
@@ -123,7 +123,7 @@
     if (pData->Selection > 0)
     {
         _stprintf(szCmdline,
-                  _T("%s /p %u"),
+                  _T("%s /p %lu"),
                   pData->ScreenSaverItems[pData->Selection].szFilename,
                   (ULONG_PTR)hPreview);
 
@@ -199,7 +199,7 @@
         return;
 
     _stprintf(szCmdline,
-              _T("%s /c:%u"),
+              _T("%s /c:%lu"),
               pData->ScreenSaverItems[pData->Selection].szFilename,
               (ULONG_PTR)hwndDlg);