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LysKOM is a conferencing system1. Similar systems were QZ-KOM and PortaCOM2. The LysKOM system is copyrighted by Lysator Academic Computing Society and distributed under conditions of the GNU Public License. LysKOM and its documentation is provided "as is" without warranty of any kind.

Anything described here as "unspecified" is liable to change in future protocol versions.

This specification is the work of several people. The main contributors have been Per Cederqvist, David Byers, Pär Emanuelsson, Thomas Bellman, Lars Aronsson, Linus Tolke and Kent Engström

The LysKOM developers can be reached by email to If you find any errors in this document, please report them at Use lyskomd as the product, and documentation as component.


  1. Or in modern terms, enabling technology for Computer-Supported Cooperative Work (CSCW).

  2. Also known as ``PottaKOM'' and ``BortaKOM.''