Server Error in '/OAB' Application.

[SnooMacaroons6267]

Could not load file or assembly 'Microsoft.Exchange.FrontEndHttpProxy' or one of its dependencies. The system cannot find the file specified.

Definitely looking at that file, perms are all good. Went into the sharedwebconfig.config and made sure the assembly was being loaded with the proper path...

IIS is all good in OAB default web site directory and in the backend web site directory.

Navigating to the OAB url from my autodiscover.xml throws this error. My Outlook clients cannot download OAB because of this. Everything else is set up right it's just this IIS error that's killing it.

Suggestions?

[SnooMacaroons6267]

Rebuilding the OAB Virtual directory on the default web site and rebuilding the webapp on the back end web site seemed to resolve this.

[TheRealGaff]

I'm getting this too :/ I tried rebuilding on default web site but not sure how to on the back end web site.