I'm sure most of us know about MDX.dll. I think it would be nice to
have the additional controls, such as the treeview, already built in. It would also be nice to be able to edit the color and style of the dialog without having to use a dll.
Also, I personally use MCI.dll a lot for playing videos or multiple sounds at once (Like a background sound with sound effects). It would be nice if there were MCI commands and identifiers built in for sound, and possibly joystick control.
If possible, a more accurate $ticks would be nice for picwin freaks.
Being able to script owner-drawn controls, without having to use tons of picwin commands would be a very nice feature, for me. I like being able to customize the look of my mIRC. If it wasn't required to picwin everything, it would be nice.
Skin support would be a nice option as welll.
As a final note, if the smilies are implimented, it would be best if they were customizeable, and could be disabled. To me, and probably a few others, smilies are extremely annoying, and typically very ugly.
Anyways, just my suggestions. Sorry for rambleing so much, and sorry for any spelling/grammar errors, as well.
-TenchiKo