Handler "svc-Integrated" has a bad module "ManagedPipelineHandler" in its module list

If you  will get this error while running your wcf application then you didn't install the prerequistes for ASP.NET 4.

To install the prerequistes go to
Start --> All Programs --> Microsoft Visual Studio 2008 --> Visual Studio Tools --> Open Visual Studio Command Prompt.
Run Visual Studio 2008 Command Prompt as “Administrator”.

Type the following:
     aspnet_regiis.exe -i

Run your application.

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