Intel says the 2011PC supports Windows 95, 98, 2000 and NT, Linux, and Palm OSes. The Windows drivers are on the CD that comes with the card, but other drivers are downloadable from Intel's support site, including WinCE,Me, and even WFW and Win3.1!
The printed Quick Install guide covers the installation basics and I didn't have any trouble with the install on my Win98SE Compaq 1650 laptop. Once installed, however, I found my laptop's sound circuitry picked up more noise than from most other cards that I've tested (this is a known issue with this laptop and others). This doesn't affect the card's performance, but it gets annoying after awhile, since you hear static when the card is transmitting or receiving data and the volume can't be controlled.
The LAN Monitor utility has a System Tray icon with a signal bar graph that's hard to read because of the little icon of the PC card that's superimposed on top of it. Putting the mouse cursor over the tray icon shows Signal strength and connection rate.
The Utility itself is an odd mix. On the plus side, it has a nice signal strength display and Transmission quality (ping) utility built in. You can also set operating mode (Ad Hoc, "ESS" (Infrastructure)), ESSID, and card power mode.
On the negative side, if you want to adjust any other of the card's parameters, including enabling/disabling Encryption, you either use the Network Adapter properties (see screen shots below) and suffer a reboot if you make any changes, or find the "My WLAN Places" utility, which the installer places in the Windows "My Computer" window (!) This utility lets you define multiple profiles and switch between them on the fly.
There's no mention of this utility in the Quick Install guide or the PDF Reference Guide. You need to go to the PDF Lan Utilities User Guide to find out about it! This is poor user interface design, in my opinion. If you must scatter admin functions among a number of programs, at least give the user an easy way to find them!