2nd Parallel Port address problem

I bought a PCI parallel card and install in the computer. After installation, computer(window XP) automatic assign the 2nd parallel port to 0xC8C8 (which is virtual memory). I have software directly talked to Parallel port. It works fine with 1st port (0x378). When I change to address 0xC8C8, it could not work.
There is something related to address. I use outport8.vi to talk to port. In this vi, address is I16. It only works with I/O memory range. My question is
1. How do I change the address 0xC8C8 to Legacy address, such as 0x278? It does not work in XP.
2. If I could not change port address, how do I talk to parallel port using some available vis?
Thanks,
Lucy

Hello Lucy,
find attached a simple Test-Program .... your Address 0xC8C8 is selected, if you choose LPT3.
I had in the past the same problems on different Lab-PC's and additional PCI-cards. I solved it with "LPT.vi" - in example used as sub.vi - I think, this should be an acceptable workaround.
Regards
Werner
Attachments:
printer_port_test.zip ‏57 KB

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