Can your IM do that?
I use IM almost every day, at work and at home, and sometimes from our customer’s PCs. That way of using is not trivial for most users of IM I guess, and that is why I cannot use any IM client(s) available.
Here I have described some points which are required for me to use IM the way I like.
IM Client has to be able to do following:
1. support several protocols (i use ICQ, IRC, Jabber, MSN and MRA);
2. be able to run from USB Stick without need to install anything on every PC and without leaving any information about its work (like some Registry keys or temp files…) so noone could know that IM was running there some minutes ago (well, except firewall logs);
3. support several sets of network settings (like proxy address, ports and using of uPnP) and several groups of UI settings (like switch off all sounds, popups, autocreating of windows, any kind of blinking…) with ability to easily switch between them (or the best way – somehow automatically);
4. full support of unicode (as I am using different PCs with different default languages for UI and nonunicode programs);
So, just four reqs. AFAIK, only MirandaIM can do all 4 of them (3rd – automatically (or, better to say, with batch file, which needs to be configured only once), 4th – with some restrictions). Or is there any other client that can fulfil all these reqs, I am not aware of?