MUTT™ is a simple Winsock-based MUD/MUSH/MU* client that provides:

MDI presentation of multiple client connections.
Drag & Drop support for sending command files.
Separate send and receive windows.
Simple scripting with limited user-definable variables.
User-definable hot keys and cursor navigation.
Log file recording.
Event triggering.

MUTT™ has been tested on various TinyMUDs, LP-MUDs and DIKU-MUDs.
It may also be used as a chat client, and in a pinch, can serve as a telnet terminal.