Ok, thx for the reply!
Have some additional questions regarding the whole setup. Initially I wonder if this setup is possible for the messenger.
Today we have some web servers and some database servers. The problem, as a described above, is that we use mySql and not a database software that messenger supports. So, the messenger is going to be placed on an own server (chat server). That server is also initially going to host the database (SQL server). So, we are talking about two separate systems, the site and the chat server.
On our site users need to log in, and a users user name is going to be used in the messenger to identify that user. Somewhere on the site users have the option to register for the use of messenger, and when he/she does an “account” is created on the chat server. The thought is that we somewhere on the site is going to have an online page of some sort where you can see who is online, from this page you could initiate a chat via messenger or something.
Is this setup possible?
One other thing is that we us VB.NET on the web servers. Could this be a problem?
One more thing, is it not going to be hard to authenticate users on the chat server as we are talking about 2 separate systems (the site and the chat server)?