Windows 7 - WG111 OS doesn't recognize driver

I was also unable to find a solution to using the Netgear WG111v1 USB WiFi adapter with Windows 7 64-bit on the web. I eventually managed to get this working and thought I ought to post the details here.

The WG111v1 uses the PRISM-GT from Conexant that is also used in the Thomson Speedstep ST121g. I downloaded the 64-bit Vista driver available for this from here:

Thomson ST121g v2 - Internet Zone

This is the link to the download itself:

http://www.thomsontelecompartner.com...Setup_v0.1.exe

http://www.technicolorbroadbandpartn...le.php?id=4002

I unzipped rather than ran the executable. There is a .inf file for the driver that needs to be edited under this path:

ST121g_VistaSetup_v0.1\STHIWv\SpeedTouch_121g\Drivers\PRISMA02.inf

Search and replace:

1. VID_06B9&PID_0121 with VID_0846&PID_4220 (lines 30,39)
2. VID_1435&PID_0427 with VID_0846&PID_4240 (lines 31,40)
3. VID_09AA&PID_1000 with VID_0846&PID_4220 (line 75)
4. VID_0915&PID_2000 with VID_0846&PID_4240 (line 110)

I obtained the replacement values from "netwg111.inf" included in the "wg111_2_1.zip" 32-bit driver downloaded from Netgear which contains similar entries to "PRISMA02.inf".

After selecting update driver in device manager properties select "Browse my computer for driver software", then "Let me pick from a list of device drivers on my computer", then "Have Disk...", and select the edited PRISMA02.inf file.

The driver is not digitally signed and whilst I did hit F8 on the first reboot and disabled the signed driver check, the driver still works for me on shutdown/reboot without having needed to do this again. If this doesn't work for you, you may need to look into disabling signed driver enforcement, though the only method I could find to achieve this involved running in a test mode.

Note that my WG111 has "WG111V2" in the FCC ID, but is actually a WG111v1. It has NETGEAR in blue on a label as shown for the WG111v1 on the Netgear support page unlike the solid silver plastic appearance of WG111v2 and WG111v3 on this page. I initially tried the Netgear WG111v2 driver but the install froze and even when it looked as though I had been able to manually install the driver it could not be enabled.