『求助』DriverStudio->EzDrvInstaller使用问题：“No driver selected!”

前天第一次学用DriverWizard建立了一个很简单的样例Sample2
在EzDrvInstaller中File->Open\"..../Sample2/sys/Sample2.inf\",
Hardware框显示*Sample2,
点击“Start Driver”按钮，出现要求搜寻Sample2.sys的对话框，安装后可正常调试。

但是昨天又进行同样的操作时，在点击“Start Driver”按钮后，
显示“No driver selected!”

请问各位大侠，这是怎么回事？

附注：
Sample2工程位置：d:\\DDK\\Sample2\\Sample2.dsw
DriverStudio安装位置：C:\\Program Files\\Compuware\\DriverStudio
文件Sample2.inf内容：
;; Sample2.inf

;; *********  PLEASE READ ***********
;; The wizard cannot create exact INF files for all buses and device types.
;; You may have to make changes to this file in order to get your device to
;; install. In particular, hardware IDs and logical configurations require
;; intervention.
;;
;; The Windows DDK documentation contains an excellent INF reference.

;--------- Version Section ---------------------------------------------------

[Version]
Signature=\"$Windows 95$\"
Provider=%ProviderName%

; If device fits one of the standard classes, use the name and GUID here,
; otherwise create your own device class and GUID as this example shows.

Class=NewDeviceClass
ClassGUID={ff646f80-8def-11d2-9449-00105a075f6b}

;--------- SourceDiskNames and SourceDiskFiles Section -----------------------

; These sections identify source disks and files for installation.  They are
; shown here as an example, but commented out.

;[SourceDisksNames]
;1 = \"Install Disk\",Disk1,,

;[SourceDisksFiles]
;Sample2.sys = 1,,

;--------- ClassInstall/ClassInstall32 Section -------------------------------

; Not necessary if using a standard class

; 9X Style
[ClassInstall]
Addreg=Class_AddReg

; NT Style
[ClassInstall32]
Addreg=Class_AddReg

[Class_AddReg]
HKR,,,,%DeviceClassName%
HKR,,Icon,,\"-18\"

;--------- DestinationDirs Section -------------------------------------------

[DestinationDirs]
Sample2_Files_Driver = 10,System32\\Drivers

;--------- Manufacturer and Models Sections ----------------------------------

[Manufacturer]
%MfgName%=Mfg0

[Mfg0]
%DeviceDesc%=Sample2_DDI, *Sample2

;---------- DDInstall Sections -----------------------------------------------
; --------- Windows 9X -----------------

; Experimentation has shown that DDInstall root names greater than 19 characters
; cause problems in Windows 98

[Sample2_DDI]
CopyFiles=Sample2_Files_Driver
AddReg=Sample2_9X_AddReg

[Sample2_9X_AddReg]
HKR,,DevLoader,,*ntkern
HKR,,NTMPDriver,,Sample2.sys
HKR, \"Parameters\", \"BreakOnEntry\", 0x00010001, 0

; --------- Windows NT -----------------

[Sample2_DDI.NT]
CopyFiles=Sample2_Files_Driver
AddReg=Sample2_NT_AddReg

[Sample2_DDI.NT.Services]
Addservice = Sample2, 0x00000002, Sample2_AddService

[Sample2_AddService]
DisplayName    = %SvcDesc%
ServiceType    = 1                  ; SERVICE_KERNEL_DRIVER
StartType      = 3                  ; SERVICE_DEMAND_START
ErrorControl   = 1                  ; SERVICE_ERROR_NORMAL
ServiceBinary  = %10%\\System32\\Drivers\\Sample2.sys

[Sample2_NT_AddReg]
HKLM, \"System\\CurrentControlSet\\Services\\Sample2\\Parameters\",\\
\"BreakOnEntry\", 0x00010001, 0


; --------- Files (common) -------------

[Sample2_Files_Driver]
Sample2.sys

;--------- Strings Section ---------------------------------------------------

[Strings]
ProviderName=\"Your Company Name here\"
MfgName=\"Name of HW Manufacturer here\"
DeviceDesc=\"Sample2 Driver\"
DeviceClassName=\"Description of Sample2 Device class here\"
SvcDesc=\"Description of Sample2 NT service here\"



[编辑 -  4/13/04 by  IanJiang]

你找到原因了吗？