http://powershell.com/cs/media/g/file-system/tags/GetRelated/Disk+ID/default.aspxTags: GetRelated, Disk IDenCommunityServer 2008.5 (Build: 30929.2835)http://powershell.com/cs/media/p/7924.aspxWed, 20 Oct 2010 21:36:44 GMTf421715f-7aba-45f0-8a8d-44de5318a3a7:7924Tobias0If you need to know which drive ID is linked to which logical disk drive letter, use this script. It shows a number of interesting techniques to get the information. First, it illustrates how to retrieve a WMI class and find its *related* classes. This way you can link Win32_DiskPartition and Win32_LogicalDisk. Next, it implements a function called Combine-Object which allows you to "melt together" two objects. As a result, Get-Drives returns objects that contain BOTH the properties from Win32_LogicalDisk and Win32_DiskPartition. This way, you can easily output disk ids and corresponding drive letters etc.