[opensuse] OT: Windows Wireless Help

I'm trying to install a wireless range extender. Setup & configuration requires that WEP be disabled. I can disable WEP in the router with a couple of mouse clicks, but I've been searching Windows help for about two hours and haven't found any info on how to disable WEP. The wireless part of the network consists of the router and a single laptop running Windows XP SP3. If anyone has experience with this, I'd sure appreciate a pointer or two. -- Don Henson