MMC Can not open file

I've Microsoft exchange server 2007 service pack 1 , it was working well .
suddenly I tried to open Queue viewer from exchange management console but below message appears :
MMC can not open file C:\program files\Microsoft\Exchange Server\bin\exchangeQueue viewer.msc
attached is more detail .
I tried to update MMC , but the server is up to date .
I downloaded all Update on that server but no changes , the problem still occur .
Nevertheles, the MMC is working fine on that server .

Could you please help us to solve this issue ?
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try deleting the windows profile then create a new one.
May i know the rollup that you have for Exchange 2007?
GHOSINIAuthor Commented:
I tried to log in different profile , but it's not working .

Rollup 8 is installed on Exchange server 2007 .
GHOSINIAuthor Commented:
I create a new admin account .
it's now working fine .
thank you for your solution .


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