It's very curious that the drivers are not Microsoft Certified, I've not seen that in awhile, and that could be the issue.
What you can try to make sure Windows is ok is run an sfc (system file checker)
Click on start, click on run, type with the quote "cmd", at the command windows type with out the quotes "sfc /scannow"
This will check all you system files to make sure they are ok, you may need your windows xp disk for this.
After this is completed check and see if you can enable windows control of the wireless, as per my post above.
Also I looked up QSS and it is just a form of WPS which all new routers support, what type of router do you have?