Configuring WCF - Error 500.21 Handler svc- bad module ManagedPipelineHandler

If you see this error you havent installed the prerequistes for ASP.NET 4.

If you  see this error you havent installed the prerequistes for ASP.NET 4.

Try This

1. Open Visual Studio Command Prompt
2. Type the following: 
         aspnet_regiis.exe -i

3. Run the command

4. Try your service again...  it should be working :-)

This basically installs the necessary ASP pieces to get your service up and working!