Well, I use VC++ to build NI-DAQ applications that are used by customers who don't have VC++, so it seems unlikely that this is the cause of your problem. But not impossible, of course.
"doesn't work properly" is pretty vague. Try giving us some more details.
John Weeks
WaveMetrics, Inc.
Phone (503) 620-3001
Fax (503) 620-6754
www.wavemetrics.com