There is a strange thing on my Windows SBS 2003. I had installed Exchange SP2 on the same. I am not able to figure out the cause behind the problem, but it looks there is some serious bug with Snap-in. First I am not able to enter GPO. I am trying to access that using MMC. I also tried gpedit.msc but getting a error saying that snap-in failed to initialize. I got the same kind of error on the screen. I tried to search from different dll files but still not able to work on it. It looks some internal sbs component is missing the setup.
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