DOCUMENT:Q313569 28-JUL-2002 [exchange] TITLE :XADM: CDO Changed to Regenerate Public Free-and-Busy Message PRODUCT :Microsoft Exchange PROD/VER::5.5,5.5 SP1,5.5 SP2,5.5 SP3,5.5 SP4 OPER/SYS: KEYWORDS:kbExchange550preSP5fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.5, 5.5 SP1, 5.5 SP2, 5.5 SP3, 5.5 SP4 ------------------------------------------------------------------------------- SYMPTOMS ======== The Collaboration Data Objects (CDO) 1.2.1 method for updating the system Free/Busy public folder message for a particular mailbox is modified with the following hotfix. If the hotfix is not installed, when an appointment is created, modified, deleted, and so on by CDO, the following processes occur to update the mailbox's free-and-busy information: 1. CDO entirely deletes the free-and-busy information contained in the MAPI property that is stored on the mailbox (usually referred to as the local free-and-busy map). 2. CDO regenerates the data entirely from the appointments in the calendar, and stores it back in the MAPI property that is stored on the mailbox. 3. CDO spawns a thread to update the mailbox's free-and-busy information that is stored in the system Free/Busy public folder. 4. The changes are merged with the existing free-and-busy message that is already stored in the system Free/Busy public folder for the mailbox. With the hotfix applied, the following process occurs: 1. CDO entirely deletes the free-and-busy information contained in the MAPI property that is stored on the mailbox (usually referred to as the local free-and-busy map). 2. CDO regenerates the data entirely from the appointments in the calendar, and stores it back in the MAPI property that is stored on the mailbox. 3. CDO spawns a thread to update the mailbox's free-and-busy information that is stored in system Free/Busy public folder. 4. The existing free-and-busy message is removed, and a new, regenerated free-and-busy message for the mailbox is placed in the system Free/Busy public folder for the mailbox. RESOLUTION ========== A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Exchange Server 5.5 service pack that contains this fix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this fix should have the following file attributes or later: Component: CDO +-------------------------+ | File name | Version | +-------------------------+ | Cdo.dll | 5.5.2655.71 | +-------------------------+ NOTE: Because of file dependencies, this hotfix requires Microsoft Exchange Server version 5.5 Service Pack 4. STATUS ====== Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. Additional query words: ====================================================================== Keywords : kbExchange550preSP5fix Technology : kbExchangeSearch kbExchange550 kbZNotKeyword2 kbExchange550SP1 kbExchange550SP2 kbExchange550SP3 kbExchange550SP4 Version : :5.5,5.5 SP1,5.5 SP2,5.5 SP3,5.5 SP4 Issue type : kbbug Solution Type : kbfix ============================================================================= 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.