I'm needing to use some snapshot software for a while to make testing software more painless. I use to use Rollback RX PC on windows XP, but have not used it in a few years. I'm using Windows 7X64 now. I see a lot of users here starting to use AX64 Time Machine. Are there any features that Rollback RX has that AX64 does not? How do they compare in terms of performance? Does one roll back your machine considerably faster than the other? Does one take considerably longer to create a snapshot than the other? I'm already using Shadow Protect version 220.127.116.1156 for full disk backup. Are there any known conflicts between Shadow Protect, and AX64, or Rollback RX? Also, will AX64, or Rollback RX prevent me from using Shadow Protect to roll back my computer to an earlier image even if that image was before ever installing AX64, or Rollback RX?