Fortres was still alive and kicking in the early 2000s. (Actually, it appears to still be alive today! I love that their icon is a sad kid:
http://www.fortresgrand.com/products/f101/f101.htm)
My internet forebears had already catalogued most of Fortres' flaws by the time I became familiar with it, but most of the holes had been closed upstream. The one obvious chink in the armor that still remained was their "Backdoor Password"
If you keyed Ctrl+Shift+Esc, an Unlock dialog would pop up and prompt you for the admin password. Alternately, there was a 6 digit integer in the titlebar that you could give to Fortres customer support and they would give you back a corresponding 6 digit unlock code. Some enterprising individual had figured out this algorithm and published the VB(6?) source for a keygen application.
My contribution to The Fight was a port of the keygen to the TI-83+ (it was a very prevalent platform at the time). No acclaim ever came to me for the port however; after I experienced the IT personnel rage when they discovered a classroom full of un-hobbled PCs, I decided to keep the authorship a secret.