Finally got an ancient LaserJet 4P to work with Windows XPP using XP's native driver.
My customer wants to use his old WordPerfect 5.1+ for DOS with this printer. He is discouraged that since he got his new computer (with no Parallel Port) he can't print like he used to.
So WP5.1+ works in a DOS VM. The software knows there's a printer there because I copied the WP5.1+ from his old hard drive.
Although Windows has USB to LPT printing available, I'm worried that DOS doesn't and I'm worried there is no workaround other than buying WIndows version of WordPerfect which customer doesn't have to learn. He's a smart doctor but when it comes to computers he would like to stay with what he knows.