Prior Versions of the MOS Protocol are listed below for reference.
MOS Protocol 2.8.4 (Socket) | PDF Posted February 11, 2011
MOS Protocol 3.8.4 (Web Services) | PDF Posted February 11, 2011
MOS 3.8.3 (Web Services). Posted September 5, 2006.
MOS 2.8.3 (Socket) | PDF. Posted September 5, 2006.
MOS 2.8.2 (Socket) | PDF. Posted September 8, 2005.
MOS 2.8.1 (Socket) | PDF. Posted July 13, 2004.