[MSDN Library April 2000] MSGFILTER (100%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Controls > Rich Edit Controls > Rich Edit Controls > Rich Edit Control Reference > Rich Edit Structures

[MSDN Library April 2000] MsgFilter Sample (16.7361111111111%)

MSDN Library - April 2000 > Platform SDK > Messaging and Collaboration Services > Microsoft Exchange Chat Server Extensibility > Sample Extensions