I just installed Exchange 2007 on a x64 computer but I have an issue about the new OWA feature 'Documents Sharing'.
If I use the Form Based Authentication, I'm able to use this feature but If I set the 'Integrated Security" for OWA, all the shares OUTSIDE the Exchange Server instead, reports an "You do not have the permissions to access the requested document or folder.".
I think this is a security-related issue. Googling around, I noticed that the "Form Based authentication" is able to pass the user credential to other servers, the "integrated security" not.
I also tryed, via Active Directory, to Delegate the Exchange server (Trust this comuputer for delegation to any service - Kerberos Only), with no lucky.