What are these printer drivers?

Hi all,

When I installed a printer driver of XP, I found the following built-in drivers. What are they? Are they useful?
1. MS Publisher color printer
2. MS Publisher Imagesetter
(You could find them when you install a new printer. Their vendors are "Generic")

Thanks in advance

Go to google.com and look for

"MS Publisher Imagesetter" driver

Good idea, Floyd!