One-Time Setup Procedure for the Windows Communication Foundation Samples

One-Time Setup Procedure for the Windows Communication Foundation Samples

One-time setup procedure for WCF samples
Ensure that .NET Framework 3.0 is installed. Some samples rely on .NET Framework version 3.5; therefore, if you intend to run them, ensure that .NET Framework 3.5 is installed.
Ensure that ASP.NET is set up. For more information about how to set up ASP.NET, see Internet Information Service Hosting Instructions.
If you installed IIS after installing WCF, you must register the appropriate scriptmaps with IIS. If you are running Windows Vista or Windows Server 2008, ensure that you performed the HTTP Activation procedure in step 2. If you are using Windows XP SP2 or Windows Server 2003, run the following command.
Note:
If you are using Windows Vista or Windows Server 2008, do not run this command.

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"%WINDIR%\Microsoft.Net\Framework\v3.0\Windows Communication Foundation\ServiceModelReg.exe" -r

Source: http://msdn.microsoft.com/en-us/library/ms751527.aspx

Hansmukh