IM COM SDK is a Win32 COM component that can be used to make Yahoo/ICQ/AIM/Jabber/GTalk clients really quickly. It encapsulates all of Yahoo/ICQ/AIM/Jabber/GTalk protocol. It provides easy to use events and methods to allow any number of clients to easily and quickly be built in any Win32 development environment.


  • Support all features of IM VCL Component
  • Support all COM enabled programming languages


v6.0 for .NET, VC, VB, C#, Delphi, BCB, PB


  • 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] New event model.
    [ALL] Fixed some minor bugs
  • v4.5
    [Yahoo] Fixed component to new Yahoo message server.
    [Yahoo] Added native 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/GTalk protocol supported
  • v3.0
    [ALL] License policy changed
    [ALL] Add local authentication(Only for Corporate license)
    [MSN] Fixed receive/send offline message bug
    [MSN] Added login as invisible
    [ICQ] Fixed get huge buddy list
    [Yahoo] Fixed send offline message bug
  • v2.5
    [MSN] MSNP15 supported
    [MSN] Messenger IM Control & Presence supported
    [MSN] Personal message supported
    [Yahoo] Change account authentication procedure. No YahooAuth.dll from now.
  • v2.2
    [Yahoo] Yahoo message protocol upgrade to YMSG15.
    [Yahoo] Send/Receive offline message supported.
  • v1.5
    [ICQ] Fix some memory leak in ICQ.
    [ALL] Fix not call from Microsoft Visual Studio 2005.
    [ALL] Add one VB.NET demo.
  • v1.2
    [ALL] Fix Unicode message bugs.
  • v1.0
    [ALL] Initial version release.