vbscript脚本查找执行文件不存在的服务

Set Shell = WScript.CreateObject("WScript.Shell")
Set fso = WScript.CreateObject("Scripting.FileSystemObject")
WINDIR = LCase(fso.GetSpecialFolder(0))
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
Set colServiceList = objWMIService.ExecQuery("Select * from Win32_Service where StartMode = 'Disabled' or StartMode = 'Manual'")
For Each objService in colServiceList
    svcName = objService.Name
    svcPath = LCase(objService.PathName)
    If InStr(svcPath, "system32\svchost")>0 Then
        svcDLL = Shell.RegRead("HKLM\SYSTEM\CurrentControlSet\Services\" & svcName & "\Parameters\ServiceDll")
        svcDLL = LCase(svcDLL)
        svcDLL = replace(svcDLL, "%windir%", WINDIR)
        svcDLL = replace(svcDLL, "%systemroot%", WINDIR)
        If Not fso.FileExists(svcDLL) Then
            wscript.stdout.writeline(svcName & " " & svcDLL)
        End If
    Else
        If Left(svcPath,1)="""" Then
            svcPath = Mid(svcPath, 2, InStr(2, svcPath, """")-2)
        Else
            If InStr(svcPath, " ")>0 Then svcPath = Left(svcPath, InStr(svcPath, " "))
        End if
        If Not fso.FileExists(svcPath) Then
            wscript.stdout.writeline(svcName & " " & svcPath)
        End If
    End If
Next