DOCUMENT:Q186790 02-MAY-1999 [exchange] TITLE :XFOR: Performance Issues after Installing Chat Server Extension PRODUCT :Microsoft Exchange PROD/VER:WinNT:5.0,5.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.0, 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== After implementing chat-specific server extensions to a chat server, the chat server's performance may decline, or it may stop responding altogether. Such server extensions were developed using the Microsoft Exchange Chat Service Software Development Kit (SDK). This kit is available with Exchange Server 5.5 Service Pack 1 (SP1) or with Microsoft Commercial Information Server (MCIS) 2.0. CAUSE ===== Implementing a chat server extension that has not been fully tested into a production environment can result in a decrease in chat server performance. In some cases, the chat server may stop responding completely. WORKAROUND ========== It is recommended to test any decrease in performance by first temporarily removing any manually-created chat server extensions. MORE INFORMATION ================ The Microsoft Exchange Chat Service in Exchange Server 5.5 SP1 and MCIS 2.0 include two sample server extensions, Channel Transcription, and Profanity Filter. Activating any server extensions on the chat server will result in some decrease in server performance. The sample server extensions that were shipped with Microsoft Exchange Chat Service were thoroughly tested for optimized performance. Consequently, they may only cause minimal decrease in performance. Using the Microsoft Exchange Chat Service SDK, you have the ability to develop your own server extensions. Additional query words: xfor; mcis; chat ====================================================================== Keywords : Technology : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2 Version : WinNT:5.0,5.5 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 1999.