Error Installing Exchange Server 2010 SP1

Hi,

I am trying to install Exchange Server 2010 SP1. All the prerequisties are fine, the install gets as far down as Client Access Roles and fails. The error is below:

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.
Click here for help... Help Resources for Errors: Exchange 2010 SP1 Help

When you select the technet site there is no info.

Hope you can help
Faza

Have you installed the dependencies? Check this thread: http://www.edugeek.net/forums/window...roken-owa.html

Have you possible rename/created any sites in IIS on that box?
exchange can be very picky if the iis sites have been changed.

No no new sites in IIS.

The actual install of SP1 has not even completed failed at "Client Access Role"

I have checked the Dependencies now but everyone i try to install comes up saying The update does not apply to your system even though it does???

I have tried that but still not working TimZim

What OS have you got Exchange installed on? Are you installing Exchange 2010 SP1 from scratch or upgrading the non-SP1 version?

Any news to this post? We have exactly the same problem on our system.