Hi, on my family computer is actually installed Abtrusion Protector just to be sure that no malware can execute. However, the computer isn't so powerfull and AP slown down it. I would like to know if the free PG v2.000 version available for download on the official website has the full MD5 protection like the full version i have ? I know the free version can only protect one process (program protection) but i am talking about the "program checksum" feature. Can I allow an unlimited amount of executable and then lock the configuration so that no new executable can start ? I would like to know before uninstalling AP. thanks you. regards, gkweb.