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Please help with iis 7 SBS 2011 "Invalid Application Path" error when testing Authentication.

Centaur12
Centaur12 asked
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I recently deployed SBS 2011 with no problems. Everything worked including OWA. I installed the latest MS updates. After rebooting I recived a message warning me to run PSConfig utility to complete updates on SharePoint. I ran PSConfig successfully but after that I could not open the Exchage Management Consloe. That is when the trouble began. I followed some troubleshooting tips that have made things worse. OWA and Exchange Power Shell no longer works. I went in to iis manager and found there is a problem with all of the virtual directories under the Default Web Site. When testing authentication, I get the error "There was an error performing the operation. Details: Invalid Application Path. All of the application paths are correct. All of the associated application pools are correct. I would reinstall iis but I'm afraid it will break Exchange and SharePoint. If reinstalling iis is the only option, how do I do it without breaking things. Is there a way to "reset" the Default Web Site?

Any help would be appreciated!

Centaur12
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SaakarSenior Technical Consultant

Commented:
Check and see if you have any backups that IIS normally creates using the command
%windir%\system32\inetsrv\appcmd.exe list backup
If you see any backups that shows should solve your issue run
%windir%\system32\inetsrv\appcmd.exe restore backup "<Backup Name>"

Hope this helps!!

Author

Commented:
I did find some restores. I tried several restores but none of them resolved the issue. I'm thinking this might be more of a permission issue with an "account" or "identity" that has lost an inheritad permission or something to that extent. Pass through authentication does not work. I've been warned NOT to un-install/re-install iis on an SBS server and I agree there.

Thank you for the help saakar!

Centaur12
The issue was caused from mor than one corrupted. Microsoft ended up resolving the issue by rebuilding these files. This was well worth the call to Microsoft support. It took them about 4 hours and an escalation but they did resolve it. Take the advice of others and DO NOT UNINSTALL IIS ON AN SBS SERVER!!! Call Microsoft support!

Author

Commented:
No other solutions were provided.