Hello green_July,
If I understand you post correctly, you are trying to drive a stepper motor through your parallel port? With that being said I have attached a
VI that will allow the control of your stepper motor through a parallel port. The code was written in 7.1, but the copy I am attaching is for 8.0 as you specified. Hope this helps and have a great day!
Regards,
Nicholas K
National Instruments
Applications Engineer