DFS Management Console Broken (Server 2008 R2)

Hey Everyone, hopefully this will be an easy fix; very shortly after installing SP1 on a Win Server 2008 R2 x64 machine I noticed that the DFS Management Console was broken. Error message pops up:

MMC cannot open the file C:\Windows\system32\dfsmgmt.msc
This may be because the file does not exist, is not an MMC console, or was created by a later version of MMC. This may also be because you do not have sufficient access rights to the file.

After doing some troubleshooting I'm finding that if I rename dfsmgmt.msc to something else, say dfsmgmt_original.msc it will open just fine. However, with the original name I get the error message. I have yet to find any other consoles that have an issue.

As a workaround I've renamed it to dfsmgmt1.msc and altered the path in the start-menu shortcut, but I'd love to know what happened in case I find any other issues that may or may not be related.

Thanks in advance.
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jostafewSystems AdministratorAsked:
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jostafewSystems AdministratorAuthor Commented:
Ok, was finally able to restart that server and confirmed that the problem still exists. I still don't know what went wrong the first time, but I was able to get around it by using the workaround in the first question, so I am going to live with that answer for the time being. Thanks for your assistance agarwalrahul.
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Rahul AgarwalTeam LeaderCommented:
This issue may occur when one or more of the .dll files that are used by the Microsoft Management Console (MMC) are missing or corrupted. These files include the following:
Msxml.dll
Msxml2.dll
Msxml3.dll

Try registering these files.

Refer: http://support.microsoft.com/kb/914231
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jostafewSystems AdministratorAuthor Commented:
Hey agarwalrahul, my applogies for not replying sooner (I recall writing a comment, but I guess I never did post it!) Anyway, I've reviewed the provided link but was only able to register Msxml3.dll (the other 2 files were not found). There is no immediate change but the article does say a restart is required. I will have to wait until the end of day to give that a shot. I'll post my findings, thanks!
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jostafewSystems AdministratorAuthor Commented:
Will accept the workaround as a solution. Please close thread.
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