What's Drive Letter of the Installation CD?

[GreatKent]

What I know is as follow(pls tell me if it's incorrect):

%systemdrive% points to the drive letter where the winxp is installed.

%systemroot% points to the windows directory

Since I don't want to copy the files in the directory $oem$ to the Harddisk, I want to run the Batch files: "hotfixes.cmd" & "applications.cmd" directly from the Installation CD. I think it would save some space.

My question is:

Is there a path which looks like %xxxx% pointing to the Drive Letter of the installation CD?

Or how could I find the path of the source CD in a Batch file?

Thanks in advance!

[webmedic]

IN this thread you will see how to use 2cdrom's but if you look close at it you will get some good ideas how to find your cdrom drive from a batch file

http://board.MSFN.org/index.php?showtopic=8381

[GreatKent]

Thank you for your reply.

BTW, may I ask one more question?

If I set

OemPreInstall = 0

and run the hotfixes directly from the CDRom, would it reduce the installation time?

[webmedic]

hm not really and the problem there is that if the hotfixes are not poart of the instller then everytime you chane something on your system and it reverts back to files from ssytem32 then you can loose your updates and they can be replaced by older files.

[GreatKent]

oh I see. Thank you