Password protect Windows startup or programs, files, etc..

Anybody know of any good 3rd party programs that will password protect windows startup or files, folders or certain programs for windows xp?

 

Two apps come to mind

Password Door
http://www.toplang.com/passworddoor.htm

and
EXE Password Protect
http://www.security-utilities.com/passwordexe.html

Have used Password Door and seems to work ok, have only used it sparingly.No experience with EXE Protect.

 

For files or folders:

www.truecrypt.org

 

I second trucrypt as a private user, Entrust as an enterprise solution.

 

Cool, thanks for the suggestions. I'll take a look.