I use Process Guard 3.150 (full version) on a Windows XP system. I have the execution protection enabled in Process Guard but I never really worried about its effectiveness because I also use Abtrusion Protector Monitor. However, I have noticed that many programs can still execute without Process Guard giving any prompts. A good way to test this is to simply log out of your current Windows XP session and then log back in. When I did this I received many prompts from Process Guard asking if I wanted to allow programs to run, for example Spyware guard, Active Sync, Fastnet99 etc etc. I am concerned because all of these programs were already running and I had not given them permission to do so within Process Guard (although they were permitted in all of my other security programs). Any feedback regarding this is appreciated. I was looking to uninstall Abtrusion Protector monitor and to use Process Guards execution protection to as a substitute but I am not confident of this anymore.