How Do I Code Plugins for Other Apps (MSN Messenger)?

[That Asian Guy]

I have seen programs which add plugins to other ones, such as internet explorer, as a .dll. How can I code my own .dll plugin for another application (I was thinking of MSN Messenger)? Thanks in advance.

[MarkB777]

http://www.codeproject.com/KB/cs/WindowsLiveMessengerAddin.aspx

Mark Brock Click here to view my blog

[Shree]

Programs that are designed to be extended using plugins usually have a published API documentation. You need to find these and code accordingly.