DOCUMENT:Q271824 23-JAN-2002 [exchange] TITLE :XADM: After Applying Service Pack Rerun Performance Optimizer PRODUCT :Microsoft Exchange PROD/VER::5.0,5.5 OPER/SYS: KEYWORDS:exc5 exc55 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.0, 5.5 ------------------------------------------------------------------------------- SUMMARY ======= Microsoft recommends that you run the Performance Optimizer (Perfwiz.exe) on an Exchange Server computer after you perform a service pack update. MORE INFORMATION ================ There are generally modifications and improvements to the Performance Optimizer (Perfwiz.exe) in each service pack. The Performance Optimizer is a very sophisticated tuning and balancing tool that you should also use in the following situations: - After every new installation of Exchange Server or upgrade of Exchange Server, before you put the server into production. - After you add components (such as connectors) to a server, including directory replication connectors. - When the number of users on your server, site, or organization changes significantly. NOTE: Before you run the Performance Optimizer, please make sure to save any customized registry settings to the Microsoft Exchange Services because Perfwiz.exe will replace these settings. After you run Perfwiz.exe, there may be occasions when some or all of these settings may be imported once again into the registry for additional optimization of the Exchange server. Additional query words: resources Q195006 MSExchangeIS 1160 perfwiz exe ====================================================================== Keywords : exc5 exc55 Technology : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2 Version : :5.0,5.5 Issue type : kbinfo ============================================================================= 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.