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Thread: MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

  1. #1
    Join Date
    Nov 2005
    Posts
    40

    MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

    Iím running Windows SBS 2003 server. There are few client workstations running windows XP Professional SP2. Server is fully patched with recent windows updates. Iíve created a shortcut on desktop for Disk Defragmenter which points me to "%SystemRoot%\system32\dfrg.msc". I did this on all workstations as well as my server.

    Now problem is when I run this shortcut on Server, it works fine but when I run the same on workstations it gives me an error message saying ďMMC cannot open the file C:\WINDOWS\system32\dfrg.mscĒ

    Any help please?

  2. #2
    Join Date
    Sep 2004
    Posts
    148

    Re: MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

    Is the error occurring on all workstations or any one PC? If yes, than just try creating a new desktop shortcut for dfrg.msc and see what happens.

  3. #3
    Join Date
    Nov 2005
    Posts
    40

    Re: MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

    Nope, the problem is not just on one pc, but on all systems. Hence I donít think the problem is with shortcut icon. Am sure there is something else creating the problem.

  4. #4
    Join Date
    Sep 2005
    Posts
    1,481

    Re: MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

    While searching for the help I came through a Microsoft Article describing ďYou receive a "Cannot open <Snap-in Name>" error message when you try to start MMC on a Windows XP-based computerĒ. I think you will surely get some help over there. Just check: http://support.microsoft.com/kb/326574

  5. #5
    Join Date
    Sep 2004
    Posts
    113

    Re: MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

    Hey madon, can you tell what exactly happens if you create a new .MSC file for Defragmenter, by running "MMC /a", adding the Disk Defragmenter Snap-In and saving that?

  6. #6
    Join Date
    Sep 2004
    Posts
    90

    Re: MMC cannot open the file C:\WINDOWS\system32\dfrg.msc

    If I assume that when you type dfrg.msc in the run box it does not run, then the best solution is to make shortcuts often enough where all I type in the shortcut is the name of the msc. It should help.

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