@cheong: I see 16 ones compatible with Windows8 (although only one is certified).

Also, barcodes aren't a particularly common device category; certainly not like USB drives or harddrives or graphics cards or printers or the bajillion HIDs that Windows has to support; although that's cold comfort when you need to make use of one.

Anyway, it might be that the only solution to this problem is to badger the device manufacturer to sort their drivers out for Windows8.