Index: dll/cpl/timedate/internettime.c
===================================================================
--- dll/cpl/timedate/internettime.c	(revision 74227)
+++ dll/cpl/timedate/internettime.c	(working copy)
@@ -313,6 +313,9 @@
 static VOID
 OnInitDialog(HWND hwnd)
 {
+    /* Disable checkbox as a missing functionality */
+    EnableWindow(GetDlgItem(hwnd, IDC_AUTOSYNC), FALSE);
+	
     GetSyncSetting(hwnd);
     EnableDialogText(hwnd);
     CreateNTPServerList(hwnd);