Ok, I looked up some stuff and I found out that Win32::AdminMisc will do what you want if you have a WinNT system. Here's an example(Not tested).

#!/usr/bin/perl -w

use Win32::AdminMisc;

my $drives = GetDrives( DRIVE_FIXED );

print $drives . "\n";
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The drive types are:

DRIVE_FIXED      - hard drive
DRIVE_REMOVABLE  - floppy
DRIVE_REMOTE     - network drive
DRIVE_CDROM      - cdrom
DRIVE_RAMDISK    - emulated drive in memory
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Some other functions that might help are:

GetDriveType( DRIVE ) - returns the drives type
GetDriveSpace ( DRIVE ) - returns the drives space
GetVolumeInfo ( DRIVE ) - returns hash of drive info
   Element     Desc
   ------------------
   Volume      Volume Label
   Serial      Serial number of drive
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I tried this script after installing Win32::AdminMisc and it told me I needed WinNT. So I wrote this one.

#!/usr/bin/perl -w

for( my $i='a'; $i lt 'z'; $i++ )
{
    if ( -e "$i:/" )
    {
        print "Drive $i exists\n";
    }
}
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This works under Win98 but it didn't pick up the A: drive because it didn't have any media in it. It also delayed while seeing if the A: drive had something in it. I also don't know how to find the volume label.
I'm hoping you're on a WinNT system, then you're set.

--=Lolindrath=--