Necro: But this was the one and only thread I found on this when I searched google for the same problem, so it seems relivant and I am sure others will find this thread looking for answers as well.
I just had to take a few moments to look around.
I found on an XP machine C:\Documents and Settings\%UserProfile%\Application Data\Intel\Wireless\Settings\Settings.ini
I see flags in that file that that match the annoying popups.
You should be able to put a config file in the default user profile and it will populate (at first login for a user but not for exsisting profiles), but I have seen applications overwrite it with a stock config when a user logs in for the first time so I usually use AutoIT and write my script from there to detect the process, close it, modify the .ini file, and then launch the process again.
It would be way too indepth to go into coding/scripting but just wanted to answer the question.
Win 7/8 should be the same just use the different app data directory.