I visited the rather uninformative website about BillP Studio's Task Catcher, then decided to download a trial copy for a spin. Using the trial copy, it was not possible to discover any real facts about how TaskCatcher works because the trial copy is 99.99% non-functional. Moreover, there is no Help file with the program or on its website. Basically, all the trial copy lets you do is to examine the various tabs on the GUI, which gives no more information than would a screenshot. Even so, because of BillP studio's fine reputation as proponent of WinPatrol, I paid $12.95 to get a registration code. Now my copy of TaskCatcher is "fully functional" -- such as it is. I *thought* this program would function more or less as a process firewall, & that it would notify me whenever any unknown process kicked in. But it does NOT do this. I started up several programs, & Task Catcher never made a murmur. Bottom line -- as far as I can tell, all that Task Catcher actually does is... (1) Allow me to list essential programs that should run at all times. TaskCatcher will then seek to ensure that they ARE running. (2) Allow me to list programs that I do NOT want to run. TaskCatcher will then seek to ensure that they do NOT run. (This is basically useless as a prevention against malware that somehow gets aboard & starts up.) I am very disappointed at the small value presented by this program. At $12.95, I feel the price is about $10 too high. I have left it installed as a reminder for me to be a more cautious buyer in the future, but I won't run the program any longer. Too bad I can't deduct the cost as a charitable contribution. Ah well..... live & learn.