Portable Pandion

Portable Pandion is a freeware Windows XMPP and Jabber client that provides not only a stable and reliable chatting environment, but also a pleasant interface and a wide array of customization options.
With support for custom emoticons and plug-ins, Portable Pandion provides all the tools you need when using the aforementioned two protocols.
You can for instance set status messages, enable notifications to find out whenever someone in your list becomes available, log messages and block certain contacts.
What’s more, Portable Pandion lets you input user information, including names, contact details, home or business address and even system information.
Of course, it supports avatars and group chats, while also allowing users to add a conference room to bookmarks for later access.
Portable Pandion works like a charm regardless of the Windows version running on your system, remaining very light on hardware resources all the time.
As you may guess after reading its name, the application is fully portable, which means that you don’t have to install it on the local disks and thus make system modifications. Instead, it’s enough to extract the archive contents and run it without prior installation or, if you wish, copy all files on a removable drive and use it on the go.
To sum up, Portable Pandion is one of the best Jabber clients out there and since it’s portable, it can be quickly used wherever you go without any other configuration settings. It’s fast and stable and gets along with all Windows versions out there.