application-aware backup fails

When "Guest OS is not supported" error appears while creating an application-aware backup task, make sure that the .vmx of the backed up VM contains proper guestOS value which corresponds the real guest OS installed.

This article describes the solution for the problem of application-aware backup performed by Acronis vmProtect 9 failing with "cannot read file as xml" error. The solution is to remove an empty registry key from SQL branch