Opprinnelig postet av Carlo
Funker fett med vanlig mIRC. Bare skriv inn /server irc.undernet.net etter du har logget inn på efnet så skal det komme et vindu som lurer på om du vil close connectionen til efnet eller om du vil ta det i et nytt statusvindu og fortsatt være connecta til efnet.

http://www.mirc.com/faq.html#section2
Multi-Server support has been added. With this feature mIRC allows you to connect to multiple servers at the same time. To open an additional connection you can either:
Enable the 'new server window' checkbox in the connect dialog, select a server, and hit the 'connect to IRC Server' button,
Hold down shift key when selecting a server from the right mouse-click popup menu of the 'options' button in the toolbar (reread that ;),
Use the new /server -m command.
You'll notice a new File/Options/Connect/Options/ 'Multi-Server' button that provides a couple of new options supporting this new feature.
The new multi-server feature required major internal changes to mIRC's code and forced improvement of code in many areas which has undoubtfully resulted in an even more stable and robust mIRC! Working on this important new feature we focussed on keeping mIRC as it always has been; no-nonsense, robust, -working- :) We tried to keep the changes to the scripting language etc, as clean as possible. Upgrading should be fairly painless.
Still a multitude of ID's, identifiers and commands has been changed and added to support the new parallel connections. Everything in mIRC now has an unique id number; all windows, server connections, dcc sends/get/chats, etc....

Opprinnelig postet av z0py3r
Du har jo også andre klienter for Windows som har multiserver støtte som f.eks xchat ( http://www.xchat.org ) som er en grei klient.