I'm not really happy with the freeze function of FD-ISR. It requires double the size of a snapshot for reference purpose and it takes a while to index and restore at boot time. So, for the heck of it, I decided to play with ShadowUser and installed it in a test snapshot. Well, I learned soon enough that ShadowUser maintains an exclude list. I added the anchored data folders and c:\$ISR to that list. That makes the 'leave-alone data' equal for ShadowUser and FD-ISR. Now, that makes for a perfect marriage! ShadowUser is swift with restoring the status, compared to FD-ISR. And I'm able to boot to a different snapshot without disruption from ShadowUser at all. There is actually no sign of ShadowUser at all in the other snapshots. This means that I still have all the features of creating test snapshots, while my wife can play all her spyware enabled games in the ShadowUser protected snapshot. I hereby pronounce FD-ISR and ShadowUser husband and wife!