SetupCopyOEMInf出错

做了一个预安装USB驱动的程序如下:
LPCWSTR result,result2,result3;
wstring strLog;
int lastError = 0;
TCHAR szPath[MAX_PATH];
TCHAR szPath2[MAX_PATH];
TCHAR szPath3[MAX_PATH];

//安装inf文件
GetModuleFileName(NULL,szPath,sizeof(szPath)); //取得当前路径
*(_tcsrchr(szPath, '\\')) = '\0';
std::wstring strTemp(szPath);
strTemp += _T("\\slabvcp.inf");
mciSendString(strTemp.c_str(), NULL, 0, 0);
result = strTemp.c_str();
printf("V1.0 Set up the usb driver......\r\n");
if(!SetupCopyOEMInf(result, //文件路径及名字一定要用绝对地址模式.
NULL,
SPOST_PATH,
SP_COPY_NEWER_OR_SAME,
NULL,
0,
NULL,
NULL))
{
int lastError = 0;
lastError = GetLastError();
if(GetLastError() == ERROR_FILE_EXISTS)
printf("This driver is exit\r\n");
else
printf("Set up driver fail! ErrorCode = %d \r\n", lastError);
return FALSE;
}
....
现在在xp. win7上运行安装都OK，但是win8上就不行ErrorCode = 5，我的驱动中也有cat数字签名文件，如果手动安装指向我的inf.cat.sys文件安装就OK. 请问这是怎么回事, 下面是inf文件
;/*++
;
;Module Name:
;
; SLABVCP.INF
;
; Copyright 2012, Silicon Laboratories
;
;Abstract:
; Installation INF for Silicon Laboratories CP210x device using KDMF Version 1.9
;
;--*/

[Version]
Signature="$WINDOWS NT$"
Class=Ports
ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318}
Provider=%Provider%
DriverVer=10/18/2013,6.6.1.0
CatalogFile=slabvcp.cat


; ================= Device section =====================

[Manufacturer]
%MfgName%=SiLabs, NTamd64

[SiLabs]
%USB\VID_10C4&PID_EA60.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA60
%USB\VID_10C4&PID_EA70&Mi_00.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA70&Mi_00
%USB\VID_10C4&PID_EA70&Mi_01.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA70&Mi_01
%USB\VID_10C4&PID_EA71&Mi_00.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_00
%USB\VID_10C4&PID_EA71&Mi_01.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_01
%USB\VID_10C4&PID_EA71&Mi_02.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_02
%USB\VID_10C4&PID_EA71&Mi_03.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_03

[SiLabs.NTamd64]
%USB\VID_10C4&PID_EA60.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA60
%USB\VID_10C4&PID_EA70&Mi_00.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA70&Mi_00
%USB\VID_10C4&PID_EA70&Mi_01.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA70&Mi_01
%USB\VID_10C4&PID_EA71&Mi_00.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_00
%USB\VID_10C4&PID_EA71&Mi_01.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_01
%USB\VID_10C4&PID_EA71&Mi_02.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_02
%USB\VID_10C4&PID_EA71&Mi_03.DeviceDesc%=silabser.Dev, USB\VID_10C4&PID_EA71&Mi_03

[silabser.Dev.NT]
Include=msports.inf
AddReg=silabser.AddReg,silabser.NT.AddReg
CopyFiles=silabser.Files.Ext

[silabser.Dev.NT.Services]
Include=msports.inf
Addservice = silabenm,,silabenm.AddService
Addservice = silabser,0x00000002,silabser.AddService

[silabser.AddService]
DisplayName = %silabser.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %12%\silabser.sys
LoadOrderGroup = Extended Base

[silabenm.AddService]
DisplayName = %silabenm.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %12%\silabenm.sys
LoadOrderGroup = PNP Filter

; common registry entries
[silabser.AddReg]
HKR,,NTMPDriver,,silabser.sys
HKR,,RateLimitPurgeMS, 0x10001, 0x64, 0x00, 0x00, 0x00
HKR,,OverrideDefaultPortSettings, 0x10001, 01,00,00,00
HKR,,InitialBaudRate, 0x10001, 00,C2,01,00 ;115200 initial baud rate
HKR,,InitialLineControl,, "8N1" ;8-bits, No parity, 1 stop bit

[silabser.NT.AddReg]
HKR,,PortSubClass,1,01
HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"

[silabser.Dev.NT.HW]
AddReg=silabser.Dev.NT.HW.AddReg

[silabser.Dev.NT.HW.AddReg]
HKR,,"UpperFilters",0x00010008,"silabenm"
HKR,,"SelectiveSuspendTimeout",0x00010001,10000

[silabser.Files.Ext]
silabser.sys
silabenm.sys

[SourceDisksNames.x86]
1=%Disk_Description%,"silabser.sys",,\x86

[SourceDisksNames.amd64]
1=%Disk_Description%,"silabser.sys",,\x64

[SourceDisksFiles]
silabser.sys = 1
silabenm.sys = 1

[DestinationDirs]
Silabser.Files.Ext = 12

;-------------- WDF Coinstaller installation

[DestinationDirs]
CoInstaller_CopyFiles = 11

[silabser.Dev.NT.CoInstallers]
AddReg=CoInstaller_AddReg
CopyFiles=CoInstaller_CopyFiles

[CoInstaller_CopyFiles]
WdfCoinstaller01009.dll

[SourceDisksFiles]
WdfCoinstaller01009.dll=1

[CoInstaller_AddReg]
HKR,,CoInstallers32,0x00010000, "WdfCoinstaller01009.dll,WdfCoInstaller"

[silabser.Dev.NT.Wdf]
KmdfService = silabser, silabser_wdfsect
[silabser_wdfsect]
KmdfLibraryVersion = 1.9

;---------------------------------------------------------------;

[Strings]
Provider="Silicon Laboratories"
MfgName="Silicon Laboratories"
Disk_Description="Silicon Labs USB to UART Bridge Installation Disk"
USB\VID_10C4&PID_EA60.DeviceDesc="Silicon Labs CP210x USB to UART Bridge"
USB\VID_10C4&PID_EA70&Mi_00.DeviceDesc="Silicon Labs Dual CP210x USB to UART Bridge: Enhanced COM Port"
USB\VID_10C4&PID_EA70&Mi_01.DeviceDesc="Silicon Labs Dual CP210x USB to UART Bridge: Standard COM Port"
USB\VID_10C4&PID_EA71&Mi_00.DeviceDesc="Silicon Labs Quad CP210x USB to UART Bridge: Interface 0"
USB\VID_10C4&PID_EA71&Mi_01.DeviceDesc="Silicon Labs Quad CP210x USB to UART Bridge: Interface 1"
USB\VID_10C4&PID_EA71&Mi_02.DeviceDesc="Silicon Labs Quad CP210x USB to UART Bridge: Interface 2"
USB\VID_10C4&PID_EA71&Mi_03.DeviceDesc="Silicon Labs Quad CP210x USB to UART Bridge: Interface 3"
silabser.SvcDesc="Silicon Labs CP210x USB to UART Bridge Driver"
silabenm.SvcDesc="Silicon Labs CP210x USB to UART Bridge Serial Port Enumerator Driver"
PortsClassName = "Ports (COM & LPT)"