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Exchange 2010 SP1 Upgrade fails on CAS role

davidjuste
davidjuste asked
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Last Modified: 2012-05-10
I am busy upgrading our Exchange 2010 servers to SP1 and two servers were successfully updated, the third server fails on the CAS role which fails with the following error

Exchange Server component Client Access Role failed.
Error: Error:
The following error was generated when "$error.Clear();
          $CommandAppCmd = join-path $env:SystemRoot System32\inetsrv\appcmd.exe;
          $imagePath = [System.IO.Path]::Combine($RoleInstallPath, "ClientAccess\Owa\auth\exppw.dll");
          Start-SetupProcess -Name "$CommandAppCmd" -args "install module /name:exppw /image:`"$imagePath`" /add:false" -IgnoreExitCode @(183);
          Start-SetupProcess -Name "$CommandAppCmd" -args "add module /name:exppw /app.name:`"Default Web Site/owa`"" -IgnoreExitCode @(183);
        " was run: "Process execution failed with exit code 1346.".
 
Process execution failed with exit code 1346.


Any help would be appreciated
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Commented:
Please follow this link and install all the pre-requisites before upgrading to Exchange 2010 Sp1.

http://msexchangeteam.com/archive/2010/09/01/456094.aspx

Hope this Helps

Thanks,
Mohammed :-)

Author

Commented:
I have installed the Hotfixes from this website already
It looks like the exppw.dll is causing the issue
- Can you try re-registering this exppw.dll DLL on the server ..then continue further?

what is the difference between this CAS and other 2 CAS servers?
Any chance you added iisadmpwd on this box?

Author

Commented:
I have tried registering the DLL but it gives an error about no start point, I have tried using the DLL from one of the successful server also get the same issue. The only difference is that this server is running the UM role, but other then that they are all the same. All running HT,CAS and MB roles
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