I keep getting "File needed: Printer driver INF ..." No driver found  

Let me point out that this is not a new printer, so when I try installing using the Installation disc that came with the printer I get 'Setup Error, The hp LaserJet 5100 setup program has encountered a severe error and will now exit. Restart your computer and run Setup again.' It gives this same error after restarting the computer and trying to install using the disc again.

I am able to get the printer to work on the Win 7 machine if it is directly connected to it, but then the other computers on the network cannot connect to it. They get the same"No .inf" errors that I get on the Win 7 machine when installing as a network printer.

The Win 7 pc is the only pc in the network that is 64bit. All the other PCs are 32 bit, and either xp home, or xp pro. Is it possible that there is a conflict with the bit types between the computers?

Thanks, Pebbly. The instruction in the link you provided, Share a Printer from XP to Windows 7, worked.

Thank you, thank you! This worked for me too. Love this forum, you all are the best!

Great! It's usefull. This solved my trouble with Windows 8 EnterpriseN 64 bit, HP LaserJet 5100 printer network shared by other XP 32 bit PC. Thank U all!