This is an example of a custom user manager that allows K2 blackpearl in a claims-based environment to use the SharePoint User Profile store as a directory service. This user provider uses the SharePoint 2010 UserProfile web service to obtain user details and the SharePoint Search web service to search for users and groups. Note: If your claims-based SharePoint site uses your AD as its directory store &/OR only uses one federated directory store you should use the K2ADFS security provider th