I had some crashing issues with Windows Vista (32bit) telling me that athr.sys was the culprit. Since this is the driver for my Belkin N1 Wireless Desktop Card (F5D8001), I thought I'd do some research.
I found the chip is made by Atheros, and found some updated drivers that work for both Windows XP and Vista.
Windows XP 32Bit
»
www.atheros.cz/download. ··· system=1Windows Vista 32/64bit
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www.atheros.cz/download. ··· system=4I haven't crashed yet, but everything appears to be working just fine.
The drivers should also work for other cards that use any of the Atheros 5000 series chips, some of the more popular ones like:
Netgear Rangemax
D-Link RangeBooster
Some Linksys.
Do some research before installing, all of the supported cards are listed at the end of the file netathr.inf
Good luck