What are the Additional Filter Settings in the LAC Filter XML?

The Lync Access Control filter has AdditionalFilterSettings tag in the .xml file.

MeetServer tag: Specifies the server for meetings. used for meeting protection.

                          Instead of looking for the meet server using localhost i.e. looping back and searching the host file, we point to the meet server directly using this tag.

webticketServer tag: This is a feature where the LAC filter directly manages NTLM handshake to ensure HTTP session is not broken.

                                  It should be used only when the regular NTLM authentication is not working.

directWebticket tag:  It will be used when the LAC need to obtain a webticket directly e.g. with FBA or Pre-Auth settings.

AlternateWebticketServer tag: It is used to point to a different webticket server that will be used if the first one fails or if the user does not match the user regex specified above.

performanceMonitor tag: Enables performance monitoring feature(See KB regarding the Performance monitoring).