Hi everybody,

I signed up to this forum so I can share my solution to change the Daemon Tools drive letter without user interference.

Because we have a lot of different workstations that all have to use the same drive letter and I couldn't find an exact solution, I found and edited the following VB script to work with Daemon Tools.

On Error Resume Next

'Device IDs
DeviceID1 = "DTSOFTBUS&REV1\DTCDROM&REV1\1&79F5D87&0&00"
DeviceID2 = "DTSOFTBUS&REV1\DTCDROM&REV1\1&79F5D87&0&00"
DeviceID3 = "DTSOFTBUS&REV1\DTCDROM&REV1\1&79F5D87&0&00"
DeviceID4 = "DTSOFTBUS&REV1\DTCDROM&REV1\1&79F5D87&0&00"
DeviceID5 = "DTSOFTBUS&REV1\DTCDROM&REV1\1&79F5D87&0&00"

strComputer = "."
Dim nRtn, WshShell
Set WshShell = WScript.CreateObject("WScript.Shell")
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_CDROMDrive")

Dim driveFound
driveFound = False

For Each objItem in colItems
If driveFound Then Exit For
Select Case (objItem.DeviceID)
Case DeviceID1
x = ChgDrv ("Y:", objItem.Drive)
driveFound = True
Case DeviceID_2
x = ChgDrv ("Y:", objItem.Drive)
driveFound = True
Case DeviceID3
x = ChgDrv ("Y:", objItem.Drive)
driveFound = True
Case DeviceID4
x = ChgDrv ("Y:", objItem.Drive)
driveFound = True
Case DeviceID5
x = ChgDrv ("Y:", objItem.Drive)
driveFound = True
End Select

Function ChgDrv(Drive, theDrive)
If theDrive <> Drive Then

'Create File
strFilename = "chgdrv" & Left(Drive,1) & ".txt"
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFile = objFSO.CreateTextFile(strFilename)

'Write Data to File
Set objFile = objFSO.OpenTextFile (strFilename, 2)
objFile.WriteLine "select volume " & theDrive
objFile.WriteLine "assign letter=" & Drive
objFile.WriteLine "exit"

'Run Diskpart calling the script just created
strRun = "diskpart /s " & strFilename
nRtn = wshShell.Run(strRun, 2 , True)

'Delete File
WScript.Echo "Drive is already in use " & Drive
End If
End Function
This script changes the current drive letter to Y:

This can easily be changed to any other drive letter by editing the letter Y: to any other drive letter that is not in use.

As far as I know Daemon Tools always uses the deviceID DTSOFTBUS&REV1\DTCDROM&REV1\1&79F5D87&0&00, but if this ever changes it can easily be retrieved by opening msinfo32.exe and expand 'Components' > 'CD-ROM'.
The Device ID's in the VB script should be made similar to the PNP Device ID information in the Microsoft system information application.