However when I went to install the driver, it would crash
First I tried uninstalled the old driver, but this didn’t help.
The next thought was “that has to be about the longest filename I’ve ever seen” - IS_AP_STA_6x_D-18.104.22.168_VA-22.214.171.124_2500_D-126.96.36.199_VA-188.8.131.52_RU-184.108.40.206_VA-220.127.116.11_AU_18.104.22.168_080207_0.1.0.24.exe
So I renamed the file, and guess what, the installer worked!
The new driver includes some extra features, though the included help file doesn’t actually bother to explain what they are.
WPS doesn’t seem to be relevant to me at home, and WMM looks like also requires Access Point support too. A quick search against my Billion 7402GL doesn’t indicate that it supports this feature though.