As the extended support end date looms nearer for Windows Server 2003 R2 or to be more precise 14/07/2015 (http://support.microsoft.com/lifecycle/search/default.aspx?alpha=Windows+Server+2003+R2) a number of you may still be running editions of this operating system.
An easy way to discover this using PowerCLI is to use the Get-VM cmdlet and filter the results where the ‘Guest.OSFullName’ property is like ‘Microsoft Windows Server 2003’
Get-VM | Where-Object {$_.Guest.OSFullName -like "Microsoft Windows Server 2003*"} | Select Name
Now you have a collection of VMs which you will probably be looking to upgrade before the extended support end date.
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