REGEDIT4

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kbdfiltr]
"ErrorControl"=dword:00000001
"Group"="Keyboard Filter"
"Start"=dword:00000001
"Tag"=dword:00000001
"Type"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kbdfiltr\Parameters]
"ConnectMultiplePorts"=dword:00000000
"KeyboardDataQueueSize"=dword:00000064
"KeyboardDeviceBaseName"="KeyboardFilter"
"MaximumPortsServiced"=dword:00000003