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Opening two Comm Ports

Opening two Comm Ports

Opening two Comm Ports

When I try to open a second comm port for communication I get a run time error "8012 the port is not open" I can open each comm port individually, but can't open both at
the same time. I'm running Windows NT. I was able to open two commports at home using Windows 98. Is there something I can change in NT to allow me to open two Commports?

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RE: Opening two Comm Ports

Turned out to be an IRQ conflict. I didn't realize the Serial card had jumpers to set the IRQ. No Plug and Play here!


RE: Opening two Comm Ports


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