With COM1 my LabVIEW 5.0 program works fine. When I
switch to COM3 (USB to serial converter) only write
operations work. The FTDI Win2k driver should work
with every application based on the Win32 COMM API.
So does LabVIEW use the Win32 COMM API for serial
communication under Win9x,NT,2k or does it provides
its own driver?