DOT printer port in Vista Home Basic

I am attempting to install the HP Photosmart 7550 on a computer with Vista home basic operating system. Following HP instructions, I am using alternate drivers for another printer. All is fine until I get to the part where I am instructed to select the DOT 4 port, no such port is visible as a choice. How do I get around this problem. Thanks

 

What is a "DOT 4 port"? I've never heard of that in connection with a printer, or, for that matter, a computer. BTW, I believe I am using DOT 4 brake fluid in my car. :-D

 

From what I have read, it is a port for MFP devices that can perform multiple tasks. The DOT port was used for parallel connected devices, since converted to USB connected devices, like the Photosmart 7550. I use a DOT 5 brake fluid. Ha!

 

Well, the DOT4 port is still an oddball to me. All I can suggest is some searching on "dot4 port printer" or simply "dot port". Here's one online discussion I found: http://pressf1.pcworld.co.nz/showthread.php?93881-What-is-Port-quot-DOT4-001-quot Hopefully, someone who is more familiar with this unusual printer connection issue will post.