Ahh...yes...actually changing the Labview data via powerpoint is a different matter....although it's probably possible using DDE. But, as you've discovered, there are several available Activex tools for writing and reading from Excel.
However,...I think no matter how you interact between the applications, Labview has to be running at some level. I don't know how you can change a control on it without it running. Is there any problem with running Labview in the background?
Eric
Eric P. Nichols
P.O. Box 56235
North Pole, AK 99705