Regarding the GUIDs under the registry location HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Group Policy\AppMgmt

How are those GUID named keys generated?

I checked the MSI of the deployed app, and it doesn't match the Product Code, Package Code, or Upgrade Code.

It doesn't match up with the GPO GUID, and in the Sysvol folder, it doesn't match up with the .aas files (or the GUIDs contained in the aas file).

As far as I can tell, that location in the registry is the only place the GUID exists...any ideas?