How to change the drive letter for a CD/DVD drive on Windows <b>Update: with a script</b>?

matze77 has asked for the wisdom of the Perl Monks concerning the following question:

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Re: How to change the drive letter for a CD/DVD drive on Windows? by BrowserUk (Patriarch) on Dec 04, 2009 at 13:19 UTC
The simplest way is to use `subst`. If the cdrom is configured as E: and you want it to appear as R: use `subst r: e:\ ... subst r: /d rem When you've finshed` [download] Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. "I'd rather go naked than blow up my ass"	[reply] [d/l] [select]
Re^2: How to change the drive letter for a CD/DVD drive on Windows? by matze77 (Friar) on Dec 04, 2009 at 14:18 UTC
Thank you for your reply. That wont do the trick. It has to be permanent. There are reboots in the other script. And is the "Policy" so I hoped there is an automatic way ... <Update> Maybe i could find the registry keys and parse them to see if it is a hard drive or an optical drive, so i dont change accidently the hard-drives letter which could be fatal ... I think i found the registry key (it is already changed to Driveletter R in the example:) (HKLM\SYSTEM\MountedDevices): "\\DosDevices\\R:"=hex:5c,00,3f,00,3f,00,5c,00,49,00,44,00,45,00,23,00 +,43,00,\ 64,00,52,00,6f,00,6d,00,54,00,53,00,53,00,54,00,63,00,6f,00,72,00,70 +,00,5f,\ 00,43,00,44,00,44,00,56,00,44,00,57,00,5f,00,54,00,53,00,2d,00,48,00 +,36,00,\ 35,00,33,00,46,00,5f,00,5f,00,5f,00,5f,00,5f,00,5f,00,5f,00,5f,00,5f +,00,5f,\ 00,5f,00,5f,00,5f,00,5f,00,5f,00,5f,00,4c,00,45,00,30,00,37,00,5f,00 +,5f,00,\ 5f,00,5f,00,23,00,35,00,26,00,32,00,36,00,37,00,39,00,34,00,34,00,66 +,00,62,\ 00,26,00,30,00,26,00,30,00,2e,00,31,00,2e,00,30,00,23,00,7b,00,35,00 +,33,00,\ 66,00,35,00,36,00,33,00,30,00,64,00,2d,00,62,00,36,00,62,00,66,00,2d +,00,31,\ 00,31,00,64,00,30,00,2d,00,39,00,34,00,66,00,32,00,2d,00,30,00,30,00 +,61,00,\ 30,00,63,00,39,00,31,00,65,00,66,00,62,00,38,00,62,00,7d,00 [download] In cleartext it reads: `\ ? ? \ I D E # C d R o M T S S ... Any Idea how to parse this have i use to parse the hex valuese? <br>?` [download] </Update> As a last resort i could do it the "graphical way" using autoit or some Win32:GUI Module but I think there could be errors this way ... Thanks MH	[reply] [d/l] [select]
Re^3: How to change the drive letter for a CD/DVD drive on Windows? by BrowserUk (Patriarch) on Dec 04, 2009 at 15:10 UTC
Take a look at the diskpart command. Specifically, the `assign` subcommand and the `/s` scripting switch. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. "I'd rather go naked than blow up my ass"	[reply] [d/l] [select]
Re^4: How to change the drive letter for a CD/DVD drive on Windows? by matze77 (Friar) on Dec 04, 2009 at 15:38 UTC
Re^5: How to change the drive letter for a CD/DVD drive on Windows? by BrowserUk (Patriarch) on Dec 04, 2009 at 15:56 UTC
Some notes below your chosen depth have not been shown here
Re^3: How to change the drive letter for a CD/DVD drive on Windows? by marto (Cardinal) on Dec 04, 2009 at 14:28 UTC
You may be able to set the appropriate registry key once, obviously this would need to be done as a user with such privilages. I'm sure if you search Google you'll find someone has done this before.	[reply]
Re: How to change the drive letter for a CD/DVD drive on Windows? by SuicideJunkie (Vicar) on Dec 04, 2009 at 15:31 UTC
`Start -> settings -> control panel -> Admin tools -> computer management -> storage -> disk management(local) -> Rightclick a disk -> Change drive letter -> Change` My condolences on the vendor. I thought that kind of absurdity died out in the early 90's	[reply] [d/l]