dg_dog

Thanks for your thoughts....

Why would 1 xp system work and not the other......

Have a dll for a spectrometer that will not work with win7.  Works with on a xp computer but not another xp.  Very strange...The Stellarnet company supplied this sample labview program.  Upon initial run the program tries to initialize the spectrometer and looks for a 1 but gets an different number.