DOCUMENT:Q136516 04-OCT-1999 [exchange] TITLE :XCLN: Improving Windows Client Startup Times PRODUCT :Microsoft Exchange PROD/VER:WINDOWS:4.0,5.0 OPER/SYS: KEYWORDS:kbenv ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Windows 3.x client, versions 4.0, 5.0 - Microsoft Exchange Windows NT client, versions 4.0, 5.0 - Microsoft Exchange Windows 95/98 client, versions 4.0, 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you start a Microsoft Exchange Windows client, the main application window may take a relatively long time to load after the startup screen appears. RESOLUTION ========== You can significantly improve startup time by correctly configuring the remote procedure call (RPC) binding order on the computer running the Exchange client. For additional informationabout the steps necessary to modify the RPC binding order, click the article number below to view the article in the Microsoft Knowledge Base: Q163576 XGEN: Changing the RPC Binding Order MORE INFORMATION ================ When the Exchange client starts up, it uses the first protocol in the RPC binding order to attempt to communicate with the Microsoft Exchange Server computer. If this attempt is unsuccessful, the Exchange client then uses the next protocol in the binding order, and so on, until it has established communication with the server or it has run out of protocols. In the latter case, an error message is displayed and the user is asked if he or she would like to work offline. Hence, if the protocol installed on the client machine is at the top of the binding order, the client establishes communication with the server in the first attempt and does not have to time out and go down the binding order. This can significantly reduce the startup time. NOTE: The information in this article only applies to setting the RPC binding order for the 16-bit Windows, Windows NT, and Windows 95 clients. It does not apply to the MS-DOS client, because a different setup method is employed. Additional query words: faq exfaqclnt exclnfaqold outlook ====================================================================== Keywords : kbenv Technology : kbExchangeSearch kbExchange500 kbExchange400 kbExchangeClientSearch kbZNotKeyword kbZNotKeyword2 kbZNotKeyword3 kbExchange400NT kbExchange500NT kbExchange400Win95 kbExchange500Win95 Version : WINDOWS:4.0,5.0 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.