I've been leaching off this board for a couple years now without contributing, so i figured this is well past due.
I bought the D-Link DWL-122 about a week ago as I've recently installed a wireless network. It was no problem installing on my Windows XP 950MHz Athlon desktop, but with Windows 98FE on another desktop and my Iopener W98SE, it wasn't exactly easy.
Now to be fair to D-Link it lists W98SE but not W98FE. I could get the driver installed in the W98FE desktop, but could never get the configuration program to run. Gave up on that and worked on my Iopener.
I downloaded the installation software from the D-Link website on my Athlon desktop and stored in a 64Meg thumbdrive. I then plugged the thumbdrive into the Iopener USB port and saved it to a file I created called "Dlinkdownload". After unzipping with Winzip, I "checked out" of Winzip and saved it to another newly created file called "Dlinkdrivers". Running the program from "Dlinkdrivers" really didn't work the first time. The driver wouldn't install. I unplugged the thumbdrive and plugged in the DWL-122. I then used the Windows Device Manager (go to Control Panel, then to System, then to the Device manager) and through browse, pointed it at the "Dlinkdrivers" file. After installing the driver, with the DWL-122 plugged in, I rebooted and the configuration icon came up in the lower left corner on the screen. It worked and I could fill in all the proper network info but would not connect when I hit connnect. So I uninstalled the software and reinstalled then rebooted. Upon reboot, the Iopener was connected to the network without having to go back to the configuration program. It was running on start-up. It has since been working the past couple days with no problems reported. So I guess the moral of the story is to keep plugging away!
One more installation hint: I tried to use a USB hub so I could have both the thumbdrive and the DWL-122 plugged in at the same time and even though Windows recognizes the hub, I could never get it to work unless it was plugged right into the Iopener. It does the same with my Athlon WinXP machine. More savvy software folks might not have a problem with this, but for the average guy like me this was something a little puzzling.
This is a good wireless USB device if you haven't made the wireless plunge with the Iopener. It's only the size of a big thumbdrive, so you can keep the portability of the Iopener intact.