SPYWAREBLASTER

SpywareBlaster does not need to remain open or running to protect a system.

The protections provided by SpywareBlaster are passive (basically 'flags' set in the registry and other places). The program itself is only used to set those flags and to get new updates. Since it is not an active scanner or any type of resident protection, it does not need to be running in the background to work.

Just run SpywareBlaster and use the "Enable All Protection" link on its main page (under Quick Tasks) and you are set. You can close the program until the next time you run it to check for updates, which should be done once a week or so.