IM SDK For .NET Framework/.NET Compact Framework provide connectivity with the Yahoo/ICQ/AIM/Jabber/GTalk Messenger service. The library is built in C# and can therefore be used by all languages the .NET environment supports. Because of a clean natural Object-Oriented approach the library is easy to use and implement. It is designed to be a flexible, robust and lightweight enhancement to any application. Applications of IM SDK For .NET Framework/.NET Compact Framework vary from creating messaging robots to creating custom clients. If your application needs to communicate through the messenger service, IM SDK For .NET Framework/.NET Compact Framework is your best tool.


  • [Yahoo/ICQ/AIM/Jabber/GTalk] Send and receive instant messages(Unicode supported) to and from other public IM client via IM Server
  • [Yahoo/ICQ/AIM/Jabber/GTalk] Change IM account status
  • [Yahoo/ICQ/AIM/Jabber/GTalk] Add and remove other client from contact, Allow and block lists
  • [Yahoo/ICQ/AIM/Jabber/GTalk] Personal message supported
  • [Yahoo/ICQ/AIM/Jabber/GTalk] List,add,remove and modify group
  • [MSN] Change IM account nickname
  • [MSN] Messenger IM Control & Presence supported
  • [MSN] Send and Receive avatar images
  • [MSN] Send and Receive file
  • [MSN] Send and Receive Shake message


v6.0 for Visual Studio 2003/2005/2008/2010/2012


  • v6.0
    [ALL] Skype supported.
    [ALL] Fixed some minor bugs
  • v5.0
    [MSN] Upgrade MSN protocol to MSNP18.
    [MSN] Signing in from multiple places (MPOP) is supported.
    [Yahoo] Upgrade Yahoo protocol to YMSG16.
    [ALL] Fixed some minor bugs
  • v4.5
    [Yahoo] Fixed component to new Yahoo message server.
    [Yahoo] Added native .NET Yahoo authorization code. YahooAuth.dll don't need now. Only for Corporate license.
    [ICQ] Added Nickname for login account and buddy.
    [ALL] Fixed some minor bugs
  • v4.0
    [ALL] Jabber and GTalk protocol supported
  • v3.0
    [ALL] AIM and ICQ protocol supported
  • v2.0
    [ALL] YAHOO protocol supported
  • v1.3
    [MSN] MSNP13 upgrade to MSNP15
    [MSN] Messenger IM Control & Presence supported
  • v1.2
    [MSN] MSNP9 upgrade to MSNP13
    [MSN] Send/Receive offline message
    [MSN] Support chat session
    [MSN] Support Send/Receive buddy avatar image
    [MSN] Support Send/Receive file
  • v1.0
    [MSN] Initial version release.