I am programming a data entry worksheet for my employer. I use Excel 2004
for Mac, they still have 2000 for Windows. I have spent a lot of time coding
so things will work on both platforms, but this one has me stumped.

I am using the Onkey function to trap the use of the Add key on the numeric
keypad to use as an incremental spinner-like key for quick data entry -- each
tap of the key increments the time in a field by 5 minutes. The Key Code for
the Onkey function in 2004 is "{+}" and works as intended. But the 2000
version isn't making the reassignment and just enters a "+". If there is a
Key Code for this in Excel 2000, what is it? If not, how else can I
accomplish this functional feature. The Subtract Key would be nice, too.

I'm stuck on this and I need some big help. Can't find anything about these
on MSDN, etc.