error loading exchange 2010 mmc, server seems to be working fine.
Initialization failed, could not load file or assembly 'system', version=4.0.0.0, culture=natural, publickeytoken=b77a5c561934e089' or one of its dependencies. the system cannot find the file specified anyone can make anything out of this ?
December 8th, 2010 12:36pm

Does Exchange Powershell work? Have you tried just reinstalling the EMC?MVP Exchange Server
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December 8th, 2010 2:51pm

Power Shell Does Work and i can use outlook to connect to the server, OWA doesn't work how can i reinstall the emc ? i tried using the setup.com /R:MT command but got an error that MT is already installed. i think it's IIS related.
December 8th, 2010 3:44pm

Thanks for the info, does sounds like IIS since both rely on IIS. Have a look at this and post back with your findings. http://msexchangeteam.com/archive/2010/02/04/453946.aspxMVP Exchange Server
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December 8th, 2010 9:04pm

The exchange team did crate a tool that checks that IIS has all apropriate settings. EMT Shooter which can be downloaded from here http://msexchangeteam.com/archive/2010/12/07/457139.aspx unfortantley, i can't seem to run the tool. and it resolts in an error. is there a way to re-install the EMT ?
December 9th, 2010 11:28am

where can i find a list of the IIS dependencies settings ? for example, all the entries in the application pool should be bound to which version of .Net ? 2 or 4 ? which authentication method should i use for the OWA, etc, etc , etc i did install MT on a different computer, and it is working just fine. running ExBpa resulted in 4 critical errors all are certificate SAN mismatch, but since there is non installed i don't think it's a big deal Just FYI, after installing the MT on another machine, the MT on the original machine are working just fine.
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December 9th, 2010 10:42pm

I recently inherited an SBS 2011 machine with the identical problem - the cause that I found was that ALL the application pools in IIS had been set to use the v4.0 .NET Framework. I compared this to my reference SBS 2011 machine and all the Exchange related application pools should have been set to v2.0 of the .NET Framework. I corrected these, and a few others besides, based on my reference machine and did an iisreset and my EMC and OWA came up instantly.
March 30th, 2011 12:54am

Thanks Tony Nuss, the solution was: "all the Exchange related application pools should have been set to v2.0 of the .NET Framework"
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November 23rd, 2011 2:48pm

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