usb的inf文件问题

[Version]
Signature=\"$CHICAGO$\"
Class=Unknown
ClassGuid={894A7460-A033-11d2-821E-444553540000}
Provider=%MFGNAME%
DriverVer=05/19/2004,1.1.5.0

[Manufacturer]
%MFGNAME%=DeviceList

[DeviceList]
%DESCRIPTION%=DriverInstall,USB\\VID_0547&PID_1030

[DestinationDirs]
DefaultDestDir=10,System32\\Drivers
DefaultDestDir.NTx86=10,System32\\Drivers

[SourceDisksFiles]
usbiso.sys=1,objchk\\i386

[SourceDisksFiles.x86]
usbiso.sys=1,objchk\\i386

[SourceDisksNames]
1=%INSTDISK%,,,

;------------------------------------------------------------------------------
;  Windows 2000 Sections
;------------------------------------------------------------------------------

[DriverInstall.NT]
CopyFiles=DriverCopyFiles

[DriverCopyFiles]
usbiso.sys,,,2

[DriverInstall.NT.Services]
AddService=USBISO,2,DriverService

[DriverService]
DisplayName=\"Shelby USB iso driver\"
ServiceType=1
StartType=3
ErrorControl=1
ServiceBinary=%10%\\system32\\drivers\\usbiso.sys

;  String Definitions
;------------------------------------------------------------------------------

[Strings]
MFGNAME=\"Shelby Lam\"
INSTDISK=\"USB driver Disc\"
DESCRIPTION=\"USBISO driver\"

安装时老是说找不到所需的段落，请问我这个INF文件有什么问题？

unknown 类的GUID不是{4D36E97E-E325-11CE-BFC1-08002BE10318}吗?是不是和这个有关系?

应该有关系
因为我注释掉GUID行就行了
谢谢