#!perl

use warnings;
use strict;
use Win32::OLE;


my $fs = Win32::OLE->CreateObject('Scripting.FileSystemObject');
my $d = $fs->GetDrive('Y:') or die "GetDrive failed $!";
my $TotalSize = $d->{TotalSize};
my $FreeSpace = $d->{FreeSpace};
my $usedSpace = $d->{TotalSize} -= $d->{FreeSpace};
my $AvailableSpace = $d->{AvailableSpace} *=100;
my $AvailUsed = $AvailableSpace  /= $d->{TotalSize}; 
my $SpaceLeft = $d->{AvailableSpace} /= $AvailUsed; 
my $MappedDriveSpaceAvailable =  $AvailUsed *= 100;
print "em_result=$MappedDriveSpaceAvailable";
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Now, there are the errors

GetDrive failed Bad file descriptor at E:\APPL\OEM\NetworkDriveCheck.pl line 9.

Weird... What is that Y: drive, then? A mapped network share? Can you see its properties the "normal" way?

Is it in the Drives collection? - i.e. would my code snippet try to list it?

Y drive is a network drive. Here are the results of the snippet

DriveLetter: Y
DriveType: 3
IsReady: 1
FileSystem: NTFS
TotalSize: 2594847440896
Use of uninitialized value in concatenation (.) or string at E:\APPL\O
+EM\checkdr
ive.pl line 14.
FreeSpac:
Use of uninitialized value in concatenation (.) or string at E:\APPL\O
+EM\checkdr
ive.pl line 14.
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