Hi, we have our own Instant Messenger. Now we want to make our IM users to talk to other users by using SIP. We have downloaded SER. But unable to go a step forward also. And am using windows platform. 1.Is it possible to make it work on windows? If yes how. 2.Our intention is to make the IM clients to talk with the other users using SIP. For this what we need to do ? Please help me in getting out from this problem. bye vijay