[Admins]

We will try to investigate the problem more next week, we will try to setup an XP installation where the problem with Windows Defender can be reproduced.

Eventually it could also help to contact that Microsoft guy, they don't seem to have a clue about that problem though. You can use any tool for checking what dlls Graal is linked to, and see that it only links to dlls that exist on any machine. The problem is that some dlls providing base functionality of the system (file dialog?) have been replaced by new dlls which require Visual C runtime libraries which cannot be found in the default dll search path.
Eventually those default dlls aren't actually replaced, but a wrong side-by-side version of it has been made the default version if a program doesn't contain any manifest.