Users are unable to open the Exchange Control Panel

After installing Exchange 2013 on Windows Server 2012 users are unable to open the Exchange Control Panel, receiving the error Server Error in '/ecp' Application.

Could not load type:


Description: An un-handled exception occurred during the execution of the current web request.

To correct this error, turn on the Windows Identity Foundation feature on all Exchange 2013 Preview servers. If not installed, install and reboot the server.

If installing on Windows Server 2008R2 SP1, the Windows Identity Foundation package can be installed from the following link:

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Will tablet and Smart phone use be a big part of your OWA 2013 deployment?