Scripts are small programs that are written in a variety of simple computer languages. They can perform useful functions but they can also be used for less useful and sometimes damaging purposes, the prime examples being computer viruses and trojan-horse programs. ScripTrap traps scripts when they attempt to run on your computer and provides the option of blocking them or letting them continue to run. You can also check the intercepted script with your anti-virus program before you decide to run it or not. This provides you with a chance of catching possibly malicious code before it causes damage. ScripTrap is particularly useful for trapping scripts that arrive in email attachments, such as the recent ILOVEYOU virus.