今天找到了一些MSN机器人的资料

http://members.home.nl/b.geertsema/dotMSN/

What is dotMSN ?

dotMSN is a class library to make use of the MSN Messenger Service. The library is built in C# and can therefore be used by all languages the .NET environment supports. DotMSN provides an easy and consistent interface through a clean Object Oriented approach. DotMSN abstracts the low-level MSN protocol so you can quickly integrate dotMSN with your application and make direct use of MSN-connectivity. DotMSN is free and can be used in both non-commercial and commercial applications. The library can, among other things, be used for:MSN bots
Sending application-notifies
Self-made clients / webclients
Integrating contact info with your application
Ofcourse there are more possibilities, if you have an awesome idea, just download the library and happy coding!Update: although the latest release is dated April 2004 we have been working on DotMSN ever since. A whole new framework has been build and will be released soon! This release (2.0) will include many new features and a more extensible and stable foundation. Visit this site regularly to stay informed! (11 jan 2005)

Features

The library currently supports: Connecting / disconnecting with the MSN Messenger service
MSNP8 protocol
File transfer
Fires events when contact go online or offline or change status
Automatically synchronizes contact lists and keeps contact data up to date
Create/Remove contactgroups
Convenient enumerating through contacts in different lists
Request or receive conversations
Multiple users in one conversation
Send messages
Received messages include information about font, charset, color, decoration
Privacy settings of the contactlist owner
Provides hotmail inbox status
Error handling

There are still some things yet to be implemented: Upgrade to newer protocols
Notify of new incoming e-mail messages
Owner profile
Proxy support
MSN 　协议：http://www.hypothetic.org/docs/msn/index.php