A PowerShell book from Microsoft Technology Advisor Frank Koch is available in English version now.
The book is available for free and you can share it with all your colleagues or friends if you leave it as it is. The book can be used with or without the demo files available at his blog as well.
The book gives you a short introduction with many exercises about the interactive part of Windows PowerShell as well as some hints how to use other objects like WMI, .NET or COM objects like Excel or Internet Explorer.
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