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Are there labview drivers for setting parallel port pins hi or low?

My application is to open or close relays and I was wondering if the parallel port could be used in this application by setting the pin voltages high or low to control the relays.
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Please see the following document from the NI web site on dealing with the parallel port:

Using the Parallel Port in LabVIEW

Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask
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