I'm using XP-sp2 and have been using a 3Com airconnect 802.11b PCMCIA card for years. Reliable card and drivers.
For a test I installed a Speedtouch 121g USB stick with the client software. Cool application, but it disabled the zero configuration networking and stored the configuration info in a file for each user. Plus some times I couldn't revive the client utility from the system tray. Bummer.
So I uninstalled the Speedtouch software. This revived the zero configuration magic, but the airconnect became unstable. Bummer!
So I used devmgmt.msc to reassign drivers to the adapter, hoping to (magically) find the stable version. No luck.
Worse, at one point I assigned a driver that most likely did not belong to a wifi card, and now....

- you insert the card and you hear the familiar bing-bong of the PCMCIA driver, but NO network icon appears in the system tray.
- the connect does not show up in Control Panel - Network Connections
- there is no network adapter shown in the Device Manager (even with devmgr_show_nonpresent_devices=1 and Show Hidden)
- I have tried to Uninstall any devices that I could (within reason)
- I have tried to install the .ini files for the adapter
- Safe booting has no visible added benefit.

I would dearly like to uninstall the drivers and other definitions for this card, so the next time I plug it in it comes back asking to specify the drivers. How? What registry keys should I kill?