Add | Adds a DicomContext item to a DicomContexts collection | 
  Remove | Removes a DicomContext item from a collection | 
  Add | Adds a DicomContext item to a DicomContexts collection | 
  Remove | Removes a DicomContext item from a collection | 
  Exists | Checks whether a particular presentation context ID exists in a collection | 
  Item | Provides access to the members of a DicomContexts collection | 
  ObjectType | Describes the nature of an automation object |