I have a hp 722c printer installed. The printer works fine. My motherboard doesn't have a parallel port so I added a pci parallel connector card. The printer is printing off the LPT 3 port. When I start my pc I keep getting the hardware install wizard. I tried using the program so the wizard doesn't keep showing up. The installation fails with error during installation, specified port is unknown.. I contacted hp and they said my drivers are up to date. My printer shows up in control panel but it is not listed in Device Manager. The ports are listed as PCI parallel port LPT3 and Printer port LPT 1. I've check the net but found that others have similar problem usb connections. Tried come of their solutions but no luck. Any suggestions.

Why are you using LPT 3 instead of LPT 1? If the card is capable of connecting more than one parallel cable then perhaps you are connecting to the wrong one.

What do you mean by ". . .similar problem usb connections" Does your printer connect via USB or parallel port? If you leave the printer disconnected and boot up do you still get the install wizard? Did the card itself need any drivers?

Thanks for the response. If the printer is assigned to lpt 1 it won't work. The pci card has only one connection. Some people using usb connections get "specified port unknown". If the printer is disconnected I don't get the install wizard. The pci card drivers are up to date. The printer is in Device Manager under hidden devices. It shows that the location of the printer is lpt 3.4

There is no reason why LPT 1 shouldn't work. Perhaps the default resources are not being assigned. Also, the printer may require additional settings in the LPT port. There is SPP, ECP & others than elude my recall at the moment. The point being there are other variables at work. Read your manual for the printer to find the recommended type of LPT port. Did the parallel port card come with any drivers on a disk?