Drive letter assignments change after Sysprep

[Phil Combs]

I'm setting up a model PC for ghosting to a number of
similarly-configured PCs. In the setup, I've assigned the
CD-ROM drive a letter of N:. However, after running
Sysprep, making my image, and blasting it out, I noticed
that Sysprep/XP changes the CD drive letter to E: (the
next available letter).

How do I stop this annoying behavior?

[Torgeir Bakken]

Phil Combs wrote:

Hi

I don't know, but if you do not find asolution, I have created a VBScript that
uses the WMI StdRegProv class to rename driveletters in registry. I guess you
can get sysprep to run program at exit or something (or put it in RunOnce in
registry)?

In that case, use
cscript.exe <path to vbs file>

or if you want to supress any messages (the WScript.Echo part)
cscript.exe //b <path to vbs file>

StdRegProv
http://msdn.microsoft.com/library/en-us/wmisdk/wmi/stdregprov.asp

Put the following in a .vbs file:

' Script that changes drive letters
' Note: Do NOT use it on SYSTEM or BOOT partition drive letters !!!
' Author: Torgeir Bakken

sComputer = "."
Const HKLM = &H80000002

' from/to
If ChangeDrvLetter("E:", "N:") Then
WScript.Echo "Drive letters changed, please reboot to see the change!"
Else
WScript.Echo "Failed changing drive letters!"
End If

Function ChangeDrvLetter(sSourceDrive, sTargetDrive)
bOK = True ' Init value
Set oReg = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" _
& sComputer & "\root\default:StdRegProv")

sKeyPath = "SYSTEM\MountedDevices"
sSrc = "\DosDevices\" & UCase(sSourceDrive)

iRC = oReg.GetBinaryValue(HKLM, sKeyPath, sSrc, sValue)

If iRC = 0 Then
sTrg = "\DosDevices\" & UCase(sTargetDrive)

iRC = oReg.SetBinaryValue(HKLM, sKeyPath, sTrg, sValue)

If iRC = 0 Then
oReg.DeleteValue HKLM, sKeyPath, sSrc
Else
bOK = False
End If
Else
bOK = False
End If
ChangeDrvLetter = bOK
End Function

--
torgeir

[Phil Combs]

I appreciate the answer, but I was hoping for something a
little simpler, like a registry tweak...

>.
>