content: Once installed, the WUSB11 wireless adapter works perfectly with a Linksys BEFW11S4 router. However, my XP computers would not recognize the installation disc set-up command until I changed the compatability setting to Windows 98/ME, even though the advertising says it's XP compatable. Unfortunately, the Linksys tech reps weren't aware of this problem and led me through hours of useless settings changes before I accidently found the fix. Great product, once installed.