Is there a way to delete all printers with the rundll32 printui.dll PrintUIEntry command?

Sure - there's a built-in script to do it...
run this from the command line:

cscript prnmngr.vbs -x -s %computername%

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It looked like it worked at first, but when I logged off then on, the printers came back.

Logon script recreating them perhaps?

No logon scripts, either locally or through Group Policy.  I'm able to delete them with the /gd command, but you have to know each \\servername\printername and there are far too many combinations set on these computers.  There's gotta be a way to script it.

Hi,
have a look here:
http://www.activexperts.com/activmonitor/windowsmanagement/adminscripts/printing/servers/#DelAllPrinters.htm

Regards
-psantiangeli

Did not work.  The printer came back when I restarted the Print Spooler Service.

I still think there's some automated method reproducing them...I ran the script on my system and my printers are gone...even after a reboot...

sirbounty: You added the printers with the "rundll32 printui.dll PrintUIEntry /ga /n\\server\printer" command?

Thanks!  I tested it with both lines in a .bat file, and it worked.  I then created a .bat file with the following:

reg delete HKLM\SYSTEM\CurrentControlSet\Control\Print\Connections /f
net stop spooler
net start spooler