New hardware found wizard

I am trying to get rid of the 'new hardware found wizard'
that pops up every time I start my computer. I have 2
printers. An Epson Color Stylus 880i and a Brother
MFC4600. They are both already installed and working fine
and I'm using win XP. How can I remove this key from the
registry
*HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\ LPTENUM*
when 1. That's the name of the folder
2. The folder contains my other printer. Please do NOT
refer me to this article because I am following all the
steps in it:
http://support.microsoft.com/?kbid=298370
(The New Hardware Wizard May Detect the Printer Device
After Every Restart of the Computer)

Can I disable plug & play as an alternative option? How?

Thanks for your help.
Sterling.