Supporting Windows

determining the drive letter of the CD on Windows PE

In vb you can use app.path maybe and take the first string from a program.
HTH

Hi!

Here is a script that you can use:

for /f "tokens=3 delims=\:" %%k in ('reg query hklm\system\mounteddevices^|find "5C003F00"') do set CDROM=%%k:

This will give you a variable called %CDROM%, the script do not care about which letter has been assigned to the CD/DVD it will instead use a variable.. I have not tested the script on computers with multiple drives, but it works perfectly on single cd-drives computers.

Have used the following with great success:

'Get the CD Rom letter via WMI
Set colItems = objWMIService.ExecQuery("Select Drive from Win32_CDROMDrive")
If colItems.Count > 0 Then
For Each objItem In colItems
strCDDrive = objItem.Drive
Next
Else
'If we could not resolve the CD/DVD drive, then ask the user
strCDDrive = InputBox("Optical Drive could not be found, please specify drive letter: ", "CD/DVD Drive Letter","D:")
End If

As with JEBOs post I have not tested the script on computers with multiple drives.

Hope this helps

Puds

Here's another script. Assuming the file below is unique to your WinPE disc it will even work with multiple drives.

@echo off
set tagfile=\Windows\wdsmcast.exe
for %%i in (c d e f g h i j k l m n o p q r s t u v w x y z) do if exist "%%i:%tagfile%" set CDROM=%%i: