MSN　AddIn　相关资源--未来空间

MSN AddIn 相关资源

Ricky 发表于 - 2007-6-12 20:13:00

Security

Unless an addin is signed with a strong name key and loaded into the global assembly cache it will run with very restricted access. E.g the permission set "Internet".

Error codes:
8013150A = An error relating to security occurred. (COR_E_SECURITY)

More info about how strong naming works can be found here.

Sending Messages (Limitations)

You can only send messages in the IncomingTextMessage event. And only to the person who sent you the message. This means you can't have for example a timer sending out a message to someone every X hours. Or forwarding all messages from Bill to Bull

Error codes:
810003DF = Attempt sending message to different user
810003E1 = Attempt sending multiple messages
810003E0 = Attempt sending message outside event

Debugging

If you set the registry key PromptForDebugger (dword) in HKCU\Software\Microsoft\MSNMessener\AddInDebugHooks\ to 1 messenger will display an empty message box before it loads so you can attach the debugger to the process before you continue.

Or you can configure visual studio to run your add in class library with an external program, select the messenger exe and then press F5 (run with debugger).

I've found it easier to develop non specific messenger code in a test application and when I know that works add it to the add-in. Especially since messenger has a bad habit of not releasing the file lock on the dll even after you unload it so you have to restart it every time you want to compile.

Links

MSDN Documentation
Katie Blanch's Blog

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