USB pass-through does not seem to be working for most USB devices on Z50D

USB pass-through does not seem to be working for most USB devices on Z50D

By default everything should come over to my Storefront provided XenDesktop W7 box, correct? We have a printer that comes over and a few thumb-drives. I just cant seem to get any webcams to come over. They show up as a device in Suse but not getting passed through to Windows.

Is there something that I need to add to my WLX.INI as I've tried this?

TCXUSBVirtualize=yes
tcxusbdevice=MSLifeCamStudio \
active=allow \
vendorid=045e \
productid=0772 \
class=0e \
subclass=01 \
protocol=00