My Intel Mac has Parallels installed and both Mac and Windows go on to the Internet via Airport. I have a printer attached to the Airport via USB. How do I print from the Windows side?
....you'll probably need to install Bonjour for Windows from the Apple site in order to use a printer shared on an AirPort Base Sation via USB. Then all you need do is add the printer using the 'Bonjour Printer Wizard'.