You have to blame Microsoft for changing the ActiveX interface every
time they release a new version of Excel. If you wrote a VB or C++
program that used properties and methods of one Excel version and
those properties and methods changed with a newer version of Excel,
you would have the same sort of problem. The way to go would be to
create different Excel interfaces separate from your main program and
dynamically load the different VIs based on what version of Excel is
installed. You still have to do extra coding but it would be isolated
to just the Excel portion.
