Any utilities to help with keyboard hack mapping?

[betacrash]

Just wondering if anyone knows of a utility that helps with finding out what key is pressed. I have recently done a keyboard hack but some of the buttons are hard to identify (i.e. shift, ctrl keys) If anyone knows of a utility like this. Please let me know. -betacrash

[Thenasty]

use the advk program from Advmame.

[betacrash]

I just found this utility off of RetroBlast.

http://www.retroblast.com/files/keythis110.zip

"KeyThis!, by Chris Stuhr is an essential tool for testing a MAME controller or keyboard encoder: it includes the status of the keyboard lights, shows multiple keypresses, and provides advanced info on the last keys pressed, including a scrolling history (extremely useful for tracking down ghosting problems!).

It's a slick, efficient (10k!) program that should prove invaluable to anyone with a keyboard encoder-based controller"

[whammoed]

I have about 10 keyboard pcb's mapped out...if you want to double check yours let me know the make and model# of the pcb you used and I will post the map for it if I have it.
Every once in a while I will throw a keyboard hack on Ebay if I don't have any plans for using it.  This one is pretty cool because it has a volume control right on it:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=6129758149&ssPageName=STRK:MESE:IT