Disabling a device with Devcon.exe

I need to disable a USB device in command line on Windows 7 Ultimate x64.

I've downloaded devcon.exe from here:

http://support.microsoft.com/kb/311272

When I start the 64bit executable I get this:

This version of C:\Work\devcon.exe is not compatible with the version of Windows
 you're running. Check your computer's system information to see whether you nee
d a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the so
ftware publisher.

When I start the 32 bit executable it works.

devcon Usage: devcon [-r] [-m:\\<machine>] <command> [<arg>...]
For more information type: devcon help

I've tried some commands like devcon classes and it seems to work.

Now I want to disable a USB device.

the Hardware id is USB\VID_0BC7

But devcon disable *USB\VID_0BC7* gives:

C:\Work>devcon disable *USB\VID_0BC7*
USB\VID_0BC7&PID_0006\5&2093BC86&0&2                        : Disable failed
No devices disabled.

UAC is off.

Disabling/Enabling this device in device manager works.

I need to get the disable working. An alternate way (without devcon) to disable a USB device by command line will also be accepted.