http://blogs.technet.com/b/heyscriptingguy/archive/2011/10/11/use-powershell-parameter-attributes-to-avoid-errors.aspxSummary: Use Windows PowerShell parameter attributes to avoid input errors in a function.en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/heyscriptingguy/archive/2011/10/11/use-powershell-parameter-attributes-to-avoid-errors.aspx#3458459Tue, 11 Oct 2011 13:56:51 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3458459JV<p>@Klaus</p> <p>Start here:<a rel="nofollow" target="_new" href="http://msdn.microsoft.com/en-us/library/ms714432(v=VS.85).aspx">msdn.microsoft.com/.../ms714432(v=VS.85).aspx</a></p> <p>The SDK has not yet beenupdated for V2 so we also ned to look here:</p> <p>help about_functions_advanced_param</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3458459" width="1" height="1">http://blogs.technet.com/b/heyscriptingguy/archive/2011/10/11/use-powershell-parameter-attributes-to-avoid-errors.aspx#3458432Tue, 11 Oct 2011 12:12:20 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3458432Klaus Schulte<p>Hi Ed,</p> <p>just one thing to say: Parameter Attributes Rock!</p> <p>There is nearly no comparable other scripting (or programming) language offering such an amount of attributes to check the existence and validity or provide defaults and define the position of a parameter!</p> <p>I&#39;m still looking for a COMPLETE list of these attribuites and their meaning, but I haven&#39;t found the right location for that by now. Maybe you can help ... ?</p> <p>Klaus.</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3458432" width="1" height="1">