It is possible to have 2 versions of Excel on th esame machine, and I have Excel 97 and 2000 co-habiting. However before installing 97, i would completly un-install XL2000, and when XL97 is in situ re-install 2000.
I’m not too sure that you have to completely steer away from forms either, you can try them and should not have real with ordinary userforms. Excel 200o does support modeless userforms, which is not available to XL97 however.
Check out the following KB articles : ">Q167985
Andrew C