MSGFILTER:  
This sample monitors the text sent to a channel and filters (replaces with *'s)
all occurances of any words it has defined in its filter-list.

This sample also demonstrates how to include a property page that can access the
instance of the extension running on a chat server and add words to its filter-list
via an addition interface.

Build+Install:
This sample is built using MS Visual C++ 5.0 and ATL.
You must have Mircosoft Exchange Chat Service V5.5 SP1 installed.
The proect's workspace/makefile will register the extension to be correctly when compiled.
You can use regsvr32 to register the DLL on any additional machine (for example, 
for remote administration using MMC)

Description:
The main ATL object implementation file is MessageFilter.cpp, this object implements the
interfaces required by a chat extension. It also implements a custom interface for 
administration of its data and the ISpecifyPropertyPages interface to allow the MMC chat
administration to query for the property pages.
The MsgFilterPP.cpp file implements a property page object.  This property is used by the 
MMC chat administration snap-in to navigate the chat object model to retieve a reference 
to the instance of the extension running on the chat server.