One of the folks at my work forgot her password to a zip file with some important docs in it. I checked to see if she had any copies of any of the contained docs outside of the zip and there are none. I have been given full permission to try to access this file.

Can anyone suggest anything I can do to break into this file assuming she used a strong password? Backtrack 3 or otherwise?

I have tried using some x86 based zip crackers with some password lists I have dug up and no luck as of yet.

Thanks in advance... please move this if I posted this in the incorrect forum