DOCUMENT:Q323464 06-AUG-2002 [msnetwork] TITLE :Err Msg: The Invitation from 'User Name' to Use Application... PRODUCT :The Microsoft Network PROD/VER::1,2.2 OPER/SYS: KEYWORDS:kberrmsg kbtool ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - MSN Messenger Service, versions 1, 2.2 ------------------------------------------------------------------------------- SYMPTOMS ======== You may receive an error message if you try to use any of the following functionality between an MSN Messenger client computer that is running Microsoft Windows XP and an MSN Messenger client that is running an earlier version of Windows, such as Microsoft Windows 2000: - Application sharing - Whiteboard - File transfer The receiving client may receive the following error message: The invitation from to start using is declined. You need to upgrade to Windows XP to use this feature. The sending client may receive the following error message: does not have installed (or it is disabled) and is not able to accept your invitation. CAUSE ===== This issue may occur because the MSN Messenger client that is installed on Windows XP uses Session Initiation protocol (SIP) to initiate a session for the function that is called (for example, Application sharing). SIP is currently supported on Windows XP only. The program functionality still uses port 1503, which is the standard Microsoft NetMeeting port, after it is connected; however, signaling is now processed differently. Signaling requires Windows XP to interpret the incoming request properly. RESOLUTION ========== If you are using a client that is running Windows XP and you want to use any of the features that are described in the "Summary" section, manually start NetMeeting to communicate with the client that is running an earlier version of Windows: 1. Click Start, and then click Run. 2. Type "conf.exe" (without the quotation marks), and then click OK. 3. After NetMeeting starts, on the Call menu, click New Call. 4. Type either the computer host name or the Internet Protocol (IP) address of the client that you want to communicate with. WORKAROUND ========== To work around this issue, use either of the following methods: - Upgrade the recipient's computer to Windows XP. -or- - Ask the user of the MSN Messenger client that is running an earlier version of Windows to send a NetMeeting invitation to the MSN Messenger client that is running Windows XP. Additional query words: ====================================================================== Keywords : kberrmsg kbtool Technology : kbMSNSearch kbMSNMessService Version : :1,2.2 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.