I tested with a Verizion version of the Asus Nexus 7 (2nd gen). The driver did install, but the ADB device manager was not detecting it. I uninstalled the Universal Driver for the device and replaced with the latest version of the Google driver and now it is working as expected.
My nexus 7 has a different vid/pid than the one included in the driver... added
%CompositeAdbInterface% = USB_Install, USB\VID_18D1&PID_D002
and everything worked just fine.
I tested with a Verizion version of the Asus Nexus 7 (2nd gen). The driver did install, but the ADB device manager was not detecting it. I uninstalled the Universal Driver for the device and replaced with the latest version of the Google driver and now it is working as expected.
Android 4.4.2
Build #KVT49L