I'm running cgminer 3.7.2 on windows xp for testing my klondikes. I had to install the WinUSB driver using the zadig utility provided on cgminer's site (the WinUSB driver is in the zadig exe), but other than that, the latest cgminer works right out of the box on windows.
http://ck.kolivas.org/apps/cgminer/
http://ck.kolivas.org/apps/cgminer/zadig/
http://ck.kolivas.org/apps/cgminer/
http://ck.kolivas.org/apps/cgminer/zadig/
I have run zadig, installed the WinUSB driver and cgminer still doesn't show the klondikes. Running windows 8, cgminer 3.7.0 stock. Should I see something in the device manager?
Perchance are you not starting with --klondike-options mhz:temp ?
Does Device Manager show K16's under the "Universal Serial Bus devices" tree ?