title: WDF Coinstaller issue
body: <p>I'm having problem installing my KMDF 1.9 driver on a 32-bit Vista machine running KMDF 1.5. I was hoping the coinstaller should update the Vista machine to KMDF 1.9. But it does not.</p>
  
  <p>What have I missed?</p>
  
  <pre><code>[Version]
  Signature = "$WINDOWS NT$"
  Class = MYDevice
  ClassGuid = {xxxxxxxx-yyyy-zzzz-cccc-dddddddddddd}
  Provider = %MyCompany%
  DriverVer = 03/04/2013,1.0.0.0
  CatalogFile = mydevice.cat
  
  ; =================== Class section ===================
  [ClassInstall32]
  Addreg = MydeviceClassReg     
  
  [MydeviceClassReg]
  HKR,,,0,%ClassName%
  HKR,,Icon,,-5
  
  [DestinationDirs]
  DefaultDestDir = 12
  
  ; ================== Device section ===================
  [Manufacturer]
  %MyCompany% = MyCompany,NTx86,NTamd64
  
  [MyCompany.NTx86]
  %DeviceDesc% = mydevice, USB\VID_xxxx&amp;PID_yyyy&amp;REV_zzzz&amp;MI_aa
  
  [MyCompany.NTamd64]
  %DeviceDesc% = mydevice, USB\VID_xxxx&amp;PID_yyyy&amp;REV_zzzz&amp;MI_aa
  
  [mydevice]
  CopyFiles = mydevice.Files
  
  [mydevice.Files]
  mydevice.sys
  
  [SourceDisksNames.x86]
  1 = %Disk_Description%,,,\x86
  
  [SourceDisksNames.amd64]
  1 = %Disk_Description%,,,\amd64
  
  [SourceDisksFiles]
  mydevice.sys  = 1,,
  
  [mydevice.Services]
  Addservice = mydevice, 0x00000002, mydevice.AddService
  
  [mydevice.AddService]
  DisplayName    = %ClassName%
  ServiceType    = 1  ; SERVICE_KERNEL_DRIVER
  StartType      = 3  ; SERVICE_DEMAND_START
  ErrorControl   = 1  ; SERVICE_ERROR_NORMAL
  ServiceBinary  = %12%\mydevice.sys
  
  
  ; =========== WDF Coinstaller installation =============
  [DestinationDirs]
  CoInstallers_CopyFiles = 11
  
  [mydevice.Dev.NT.Coninstallers]
  Addreg = Coinstaller_Addreg
  CopyFiles = CoInstallers_CopyFiles
  
  [CoInstallers_CopyFiles]
  winusbcoinstaller2.dll
  WdfCoInstaller01009.dll
  
  [SourceDisksFiles.NTx86]
  winusbcoinstaller2.dll = 1
  WdfCoInstaller01009.dll = 1
  
  [SourceDisksFiles.NTamd64]
  winusbcoinstaller2.dll = 2
  WdfCoInstaller01009.dll = 2
  
  [CoInstallers_AddReg]
  HKR,,CoInstallers32,0x00010000,"winusbcoinstaller2.dll","WdfCoInstaller01009.dll"
  
  [mydevice.Wdf]
  KmdfService = mydevice, mydevice_wdfsect
  
  [mydevice_wdfsect]
  KmdfLibraryVersion = 1.9
  
  ; ======================= Strings ======================
  [Strings]
  MyCompany        = "MyCompany"
  Disk_Description = "My Device Installation Disk"
  ClassName        = "MYDEV"
  DeviceDesc       = "My Device"
  </code></pre>
  
  <p>The setupapi.dev.log says:</p>
  
  <pre><code>!!!  dvi: Device not started: Device has problem: 0x27: CM_PROB_DRIVER_FAILED_LOAD.
  </code></pre>
  
  <p>Everything works fine on Win7 which already got KMDF 1.9</p>