Exchange 2010 on Win 2008 R2 Its not really a exchange question but i experienced this with the exchange mmc: 1. I have a shortcut to "Exchange Management Console.msc" 2. I opend the EMC in Author Modus. 3. I changed nothing but the size of the window (full) 4. During save I chosed to rename the old Exchange Management Console.msc to Exchange Management Console-orig.msc and saved the new to the original name. 5. Then opening the EMC I get an Error: the file cant be opend possibly it does not exist ... If I rename Exchange Management Console.msc to any other name it works if I rename it back to "Exchange Management Console.msc" the error occurs. Could anybody tell me why this happens?