Cheers to Degger for the heads up:
The Messenger Plus! Extension Kit has been updated, fixing a few bugs.
This is version v1.40b, released yesterday, 10/26/2001.
What´s new in this version?
No more freeze in the setup for some of you who are upgrading from an older version of Messenger Plus!.
The QuickText menu is well updated with Windows Messenger 4.5.
No more '_' character in front of the email when logging.
Download: The Messenger Plus! Extension 1.40b