Install webcam upperfilter driver

Hey everyone,

I wrote a upper filter driver on webcam driver.
Now I want to install it on webcam driver,but *unable to install*
My filter driver is a device filter,not class filter.

Would you help me?

INF file

[Version]
Signature=“$Windows NT$”
Class=Image
ClassGuid={6BDD1FC6-810F-11D0-BEC7-08002BE2092F}
Provider=%PROVIDER_NAME%
CatalogFile=CamFilter.cat
DriverVer=07/01/2006, 1.0.0.0

[DestinationDirs]
DefaultDestDir = 12

[Manufacturer]
%PROVIDER_NAME% = DeviceList

[DeviceList]
%DEVICE_NAME% = CamFilter, USB\Vid_046d&Pid_0920&Rev_0001
USB\Vid_046d&Pid_0920 ;webcam HardwareID

[CamFilter]
CopyFiles=CamFilter.CopyFiles

[CamFilter.CopyFiles]
CamFilter.sys

[CamFilter.Services]
AddService = CamFilter, , CamFilter_Service_Inst

[CamFilter_Service_Inst]
DisplayName = %CamFilter.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 0 ; SERVICE_ERROR_IGNORE
LoadOrderGroup = “camera filter”
ServiceBinary = %12%\CamFilter.sys

[CamFilter.HW]
AddReg = CamFilter.HW.AddReg

[CamFilter.HW.AddReg]
HKR,“UpperFilters”,0x00010000,“CamFilter”

[SourceDisksNames]
1 = %DiskId1%,

[SourceDisksFiles]
CamFilter.sys = 1,

[Strings]
DiskId1 = “CamFilter Driver Installation Disk #1
PROVIDER_NAME = “ABC inc.”
CamFilter.SvcDesc=“CamFilter Driver”
DEVICE_NAME = “Camera Controller”

Thanks
Nikki