Out-Dataset Cmdlet
Out-DataSet is an extremely useful and needed cmdlet. You can use it to pipe any type of data that can be formatted with the built-in cmdlet, Format-Table, into a typed Microsoft .NET System.Data.DataSet. This allows an unlimited manipulation of data that you simply cannot achieve with text globbing. This cmdlet is experimental in nature because it was achieved by reverse engineering the Format-Table cmdlet to pull the data directly from internal data structures that Microsoft does not expose via its public API. This was a necessary task in order to represent the data with 100% accuracy every single time.
External links
http://akutz.wordpress.com/2009/03/30/introducing-h9labs-powershell-cmdlets-out-dataset/
http://h9labscmdlets.wiki.sourceforge.net/
http://www.ntpro.nl/blog/archives/1036-Andrew-Kutz-is-finally-into-PowerShell.html