How do I setup Windows Messenger to work only on corporate network?

[Gary]

Hello,
Does anybody know how to setup Windows Messenger on XP
professional boxes, so that users can only chat with other
users on the corporate LAN?

If so, can you please point me in the right direction.
Thanks.
Gary.

 

[Gary]

Jonathon,
What "SIP-based Communications Services" are available?
Can they be run on a NetWare 5.1 server? Alternatively,
can any of them be run on Solaris or Redhat Linux?
We will not be buying Microsoft Exchange, but would still
like to use the Windows Messenger capability of XP, within
a corporate LAN only.
Regards,
Gary.

-----Original Message-----
Greetings Gary,

Although there are registry keys that you can set to

restrict Windows Messenger to use an

Exchange IM Server or SIP-based Communications Service

(which I assume you're not using,

since you didn't mention it), there is no way to restrict the use of Messenger to just
internally if you're using the public .NET Messenger

Service. All messages go to and from

the public Messenger servers, so it's nearly impossible

to make this type of restriction.