OK.
1. Here's the folder path (I misquoted the name, it's "wlansvc" not "wlan"):
C:\ProgramData\Microsoft\Wlansvc
This address must be hard-coded in the OS (Win 7) because
(a) it is not anywhere in the registry, and
( if you simply move it, all wireless LAN functions stop completely.
There is a Windows Service called "WLAN autoconfig", and its description says that it runs the
"WLAN Service" which sets up the LAN connections. Apparently, this service looks for the folder
at the above address.
2. I ran the Scan as you suggested: doesn't mention