Exchange 2007 unable to enable UCC cert or access CAS virtual directories

We had a 2 server Exchange 2007 site where the primary production server died and we're scrambling to get the second server back into production (it was on it's way to being decommissioned) while we rebuild the failed server.

I've rekeyed the UCC cert for the working server and was able to import it successfully through EMS.  However, when I tried to Enable-ExchangeCertificate, I get an error "the specified module could not be found."  

In fact when I try to Get-ExchangeCertificate I get the error :

 Get-ExchangeCertificate : Unable to create Internet Information Services (IIS)
directory entry. Error message is: The specified module could not be found.
. HResult = -2147024770.

I get the same error when I try to Get-ActiveSyncVirtualDirectory, Get-AutoDiscoverVirtualDirectory, Get-OWAVirtualDirectory, etc.

when i issue Get-ClientAccessServer I still get both the failed and working servers listed.  

In/out mail flow and OWA is currently working.

Any help is greatly appreciated, as we're trying to get Outlook Anywhere and ActiveSync connections working ASAP.  Thanks
smocohibaAsked:
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smocohibaAuthor Commented:
Also the failed server was at version 8.3 (build 83.6) and the working server is at version 8.2 (build 176.2).  Do I need to bring up the working server's service pack level?
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David CarrCommented:
Is this a multi role server? What roles are installed?
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smocohibaAuthor Commented:
Yes it has CAS/Hub/Mailbox roles installed (as did the failed server)
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Simon Butler (Sembee)ConsultantCommented:
Ideally the server should be at the same patch level as the other server. You need to install Exchange 2007 SP3.

Ensure that you don't have the Windows Management Framework 3.0 installed on the server, as that breaks a lot of things.

http://blogs.technet.com/b/exchange/archive/2012/12/14/windows-management-framework-3-0-on-exchange-2007-and-exchange-2010.aspx

Simon.
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smocohibaAuthor Commented:
Thanks Sembee I'm going to apply the service pack tonight when users are out and will update with the results.
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smocohibaAuthor Commented:
Looks like a system reboot and applying service pack did the trick.  thanks again
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