I am setting up claims-based authentication for SharePoint 2010 with AD FS 2.0 (following instructions Configuring Claims Based Authentication for SharePoint with AD FS 2.0
I've a claims-aware web application. However if I open IIS and explore the virtual directories, I can see _app_bin, _vti_pvt, etc but _trust is missing.
How do I enable the _trust virtual directory?