no idea where your getting your zdag tool from but it aint the cgminer one.
zadig
http://ck.kolivas.org/apps/cgminer/zadig/run as admin and replace what ever drivers with winusb
cgminer
http://ck.kolivas.org/apps/cgminer/if your getting cgminer or zadig from anywhere else then its no official
quick guide
http://bloginhell.me/mining-bitcoin/usb-asic-miners-setup-guide-cgminerok quick little guide for Noobs and first timers This works with 99% of USB Miners out there this will ONLY work with CGMINER
1. Download CGminer
2. Download Zadig
3. Insert Miner into USB port in either your USB HUB or Computer
4. Wait until windows has done installing what ever crap drivers it wants, most of the time it will say unable to find drivers
5. Open Zadig as administrator and click "options" "List All Devices"
6. Find and select your miner
7. Important and often forgot in most guides unplug the device and plug it back in
8. Create a .Bat file for cgminer with your pools settings and stuff in
9. Edit and save .Bat file with your miner pool (right click and open with notepad remember to keep it set to all file when saving and not to any .txt format)
10. run the . Bat and watch the mining start