Docking

@sif519: hi, welcome to the forums!
unfotunately, that's not possible, there is a 'winskin' plugin though that *might* help you achieve something similar (always on top, no borders, something like that), but docking in the sense that you are talking about is simply not possible, the causes are :
1 - we use tcl/tk development language which does not support that...
2 - that's a very specific windows feature that would require writing a C extension to the Tcl/Tk language, and it would only work for windows
3 - we are a multiple client, and we tend to avoid implementing something OS specific if other oses can't take advantage of the same thing (reasonably).
4 - there just isn't any need for it, you're the very first person to request this, out of our multi-million users...
5 - even if we were willing to do it, there is no time, and we'd prefer spending the small amount of time we have for the project on something of a higher priority.

@alexandernst: he's on windows (talking about trillian) and when he said 'docking' he means when the window 'docks' to one side of the screen.. it's a windows specific feature, where you can make a window take over desktop space (kind of like the taskbar) and no application can go over it, etc.. as if that part of the screen isn't part of the desktop. You understand ?