I have been using Firstdefense-ISR for a few months now, and for no good reason I installed Rollback RX after a fresh Windows installation. I'm delighted by the concept of snapshots, which has way more possibilities than FD-ISR. Here is what I started today: http://www.geocities.com/wilbertnl/images/rollback-rx1.png This is just a sample for test purpose, as you can see I installed 2 different antivirus programs and 3 different MS Money versions. Great for (beta-)testing purpose. I like the tree structure, which shows the layers of snapshots. But when I want to switch to another snapshot, I'm afraid that it will be more difficult to recognize the right snapshot to select: http://www.geocities.com/wilbertnl/images/rollback-rx2.png Like I said, I installed this today, and I'm excited about the 'unlimited options'. What do you think?