WIN 7 Driver problem help~

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C++

Windows

Win7

driver

I Wrote a driver for WIN7 64bits computer ,now the driver can be installed on the computer successfully ,but there is a bug. After installed the driver, the driver should run immediately on the compter.but it wasn;t. after i replug the device the driver started working ,anyone know how to soolve this ?is that i need a restart after installation?please give me direction on how to solve this ,thanks .
here are the code for installedselectedsriver( i think this part of code have some problem,but i can find it):

typedef BOOL (*PINSTALLSELECTEDDRIVER)(
  HWND hwndParent,
  HDEVINFO DeviceInfoSet,
  LPCWSTR Reserved,
  BOOL Backup,
  PDWORD pReboot    
  );

	DeviceInfoSet = SetupDiGetClassDevs(&guidHID1,
		NULL,
		0,   
		DIGCF_PRESENT|DIGCF_INTERFACEDEVICE);
	if(DeviceInfoSet == INVALID_HANDLE_VALUE) 
	{
	
		MessageBox(_T("the device is not connected "));
		return;
	}
	SP_DEVICE_INTERFACE_DATA strtInterfaceData;
	strtInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
	TCHAR InstanceId[MAX_PATH];
	DWORD index = 0;
	CString temp;
	BOOL findFlag = false;
	int i = 0;
		while(1)
	{
		
		if(!SetupDiEnumDeviceInterfaces(DeviceInfoSet, 
			NULL, 
			&guidHID, 
			i,
			&strtInterfaceData))   
		
		{
			break;
		}
		i++;
		if(strtInterfaceData.Flags == SPINT_ACTIVE )
		{
			
			DWORD strSize = 0, requiesize = 0;
			DWORD nSize= 0;
			
			SetupDiGetDeviceInterfaceDetail(DeviceInfoSet, 
				&strtInterfaceData, 
				NULL, 
				0, 
				&strSize, 
				NULL);
			requiesize = strSize;  
			PSP_DEVICE_INTERFACE_DETAIL_DATA strtDetailData;
			strtDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(requiesize);
			strtDetailData -> cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
			
			DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
			if(!SetupDiGetDeviceInterfaceDetail(DeviceInfoSet, 
				&strtInterfaceData,
				strtDetailData, 
				strSize, 
				&requiesize, 
				&DeviceInfoData))
			{
				MessageBox(_T("can not get the interface information"));
				free(strtDetailData);
				break;
			}
	if(!SetupDiGetDeviceInstanceId(DeviceInfoSet,&DeviceInfoData,InstanceId,sizeof(InstanceId),&nSize)) 
	{
		MessageBox(_T("can not get the instanceid"));
	}
  }
}
		 DeviceInfoSet = SetupDiCreateDeviceInfoList(NULL, NULL);
    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
	{
        Err = GetLastError();
       // goto clean0;
	}
	  DeviceInfoData.cbSize = sizeof(DeviceInfoData);
    if (!SetupDiOpenDeviceInfo(DeviceInfoSet,
                               (PCTSTR)InstanceId,
                               NULL,
                               0,
                               &DeviceInfoData)) {
        Err = GetLastError();
        //goto clean0;
    }
	 if (!SetupDiSetSelectedDevice(DeviceInfoSet,
                                  &DeviceInfoData)) {
        Err = GetLastError();
        //goto clean0;
    }
	    DeviceInstallParams.cbSize = sizeof(DeviceInstallParams);
    if (!SetupDiGetDeviceInstallParams(DeviceInfoSet,
                                       &DeviceInfoData,
                                       &DeviceInstallParams)) {
        Err = GetLastError();
        //goto clean0;
    }
	 DeviceInstallParams.Flags |= DI_ENUMSINGLEINF;
	 CString path2;
    if (FAILED(StringCchCopy(DeviceInstallParams.DriverPath,
                             SIZECHARS(DeviceInstallParams.DriverPath),
                             path2)))
	{
        // The file path that was passed in was too big.
        Err = ERROR_INVALID_PARAMETER;
        //goto clean0;
    }
	 DeviceInstallParams.FlagsEx |= DI_FLAGSEX_ALLOWEXCLUDEDDRVS;
    if (!SetupDiSetDeviceInstallParams(DeviceInfoSet,
                                       &DeviceInfoData,
                                       &DeviceInstallParams))
	{
        Err = GetLastError();
        //goto clean0;
    }
	 if (!SetupDiBuildDriverInfoList(DeviceInfoSet,
                                    &DeviceInfoData,
                                    SPDIT_COMPATDRIVER)) 
	 {
        Err = GetLastError();
        //goto clean0;
    }
     if (!SetupDiCallClassInstaller(DIF_SELECTBESTCOMPATDRV,
                                   DeviceInfoSet,
                                   &DeviceInfoData))
	 {
        Err = GetLastError();
        //goto clean0;
    }
	   DriverInfoData.cbSize = sizeof(DriverInfoData);
    if (!SetupDiGetSelectedDriver(DeviceInfoSet,
                                  &DeviceInfoData,
                                  &DriverInfoData)) 
	{
        Err = GetLastError();
        //goto clean0;
    }
	  if (GetSystemDirectory(NewDevPath, SIZECHARS(NewDevPath)) == 0) {
        Err = GetLastError();
        //goto clean0;
    }
	  if (FAILED(StringCchCat(NewDevPath, SIZECHARS(NewDevPath), TEXT("\\NEWDEV.DLL")))) {
        Err = ERROR_INSUFFICIENT_BUFFER;
       // goto clean0;
    }
    hNewDev = LoadLibrary(NewDevPath);
    if (!hNewDev) {
        Err = GetLastError();
       //goto clean0;
    }
    pInstallSelectedDriver = (PINSTALLSELECTEDDRIVER)GetProcAddress(hNewDev, "InstallSelectedDriver");
    if (!pInstallSelectedDriver) {
        Err = GetLastError();
       // goto clean0;
    }
    //
    // Call pInstallSelectedDriver to install the selected driver on
    // the selected device.
    //
 if(!pInstallSelectedDriver(NULL,DeviceInfoSet,NULL,TRUE,&Reboot))
 {
	 DWORD myErr;
	 myErr = GetLastError();
	 AfxMessageBox(LPCTSTR(myErr));
 }