No kidding, I didn't want to paste code that was actually malicious. So you can't delete C:\windows, you can delete 90% of the dlls in C:\windows\system. That would render the system inoperable. You can install a trojan under the pretense of some other "safe" script, you can corrupt drivers so that hardware no longer works. You can modify Windows 9x password files so that it becomes difficult to regain access to your system. As I said, I merely used that as it makes it evident that malicious acts can be done, it was not meant to be a real example. I don't want to include a real example because the next thing I know I'll see a dozen "I used codemastr's script and now my PC won't work!!!" posts.