/componentsDiff Compares two component folders. Requires three arguments: OptionalTfsServerCollectionUri SourceVersionedServerFolderPath ...

/componentsDiff Compares two component folders. Requires three arguments:
                OptionalTfsServerCollectionUri SourceVersionedServerFolderPath 
                TargetVersionedServerFolderPath
                If OptionalTfsServerCollectionUri is not provided, then an 
                attempt is made to use the current TFS project collection.