How does windows messenger find out the location of the LCS?

[Mukund]

I have a windows messaging client that connects to aLive communications
server using SIP. It conencts fine. I would like to know how windows
messenger finds out the location (IP address) of the LCS just with my
sign-in name. I have not configured the name of the server in
messenger. Does it use the sip uri to find out what the address of the
LCS is?

Thanks,
Mukund

 

[Jonathan Kay [MVP]]

Greetings Mukund,

Partly. It queries the DNS server for SRV records to actually find the actual LCS server and
then connects to it. Whomever set up the LCS server would've done this.

--
Jonathan Kay
Microsoft MVP - Windows Live Messenger/MSN Messenger/Windows Messenger
Associate Expert
http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources - http://messenger.jonathankay.com
All posts unless otherwise specified are (c) 2006 Jonathan Kay.
You *must* contact me for redistribution rights.

 

[Mukund]

Thank you very much for the info Jonathan. Can I ask you a further
question? I'd like to know if I can write a java SIP client to the LCS
and run it on a unix box. I'd like to send instant messages to windows
messenger clients from the java program. If this is technically
possible, how would the java client authenticate itself, assuming that
a user account for the java program has been created in the AD that has
the LCS user data.

Thanks for your help,
Mukund