Summary
When attempting to configure the Workflow Web Service on Windows Server 2008 with IIS 7.0, you may receive an HTTP 500.19 error. You may see a more detailed IIS error page similar to the following:
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid.
Error Code: 0x80070032
Config Error: The configuration section 'standardEndpoints' cannot be read because it is missing a section declaration
Cause
The pre-Service Pack 2 (SP2) version of Windows Server 2008 with IIS 7.0 does not fully support .NET Framework 4.0.
Resolution
Visit the Microsoft Support Site to install Service Pack 2 for Windows Server 2008 (http://support.microsoft.com/kb/968849) or apply Microsoft hotfix 958854 (http://support.microsoft.com/kb/958854).