This driver should have what you need:
http://ftp.hp.com/pub/printers/software/lj388en.exe
a.. Before proceeding with the software installation, the printer must
first be properly set up, and your computer must be ready to print.
b.. Turn on the printer first, then the computer.
c.. Close any screen savers, virus protection programs or other software
programs that are running on your computer.
d.. Download the file to your hard drive and then run the Add Printer
Wizard.
e.. Running the downloaded file will extract all the driver files into a
directory on your hard drive.
f.. You will have an opportunity to change the drive and directory.
(Select the "Have Disk" option and then point it to the folder where you
extracted the driver. If there are multiple folders, point to the Windows
ME one (or 95/98... same family of OS.) Point it to the folder with the
*.inf file in it.

Signature
Colin Nash
Microsoft MVP
Windows Printing/Imaging/Hardware
> I now have a HP LaserJet 6P printer that I acquired from
> work. When I go to install the new printer wizard, it
> tells me to now ensert Windows Millennium Edition disk ?
> Because it can't find PJLMON.DLL ?? I don't have a disk
> and I have searched the internet ?? Now what ??
> Thanks