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Microsoft Exchange Server 5.5 Service Pack 4

Service Pack 4 for Exchange Server 5.5 is available at Exchange Server 5.5 Service Pack 4 Overview. It is a compilation of previously released hotfixes and does not include any new features.

Microsoft's extended life-cycle support for Exchange Server 5.5 ended January 10, 2006. Microsoft has much of their information and links to downloads archived in TechNet.

 

Fixes & Features | Client Updates | Other Tools | Post SP4 Fixes | More Information

Fixes & Features

 For a list of problems fixed in SP4, see:
  • XGEN List of Bugs Fixed in Exchange Server 5.5 Service Pack 4 (Part 1)
  • XGEN List of Bugs Fixed in Exchange Server 5.5 Service Pack 4 (Part 2)
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    Also see Microsoft Security Bulletin (MS00-082) about a security hole fixed in SP4 that makes Exchange 5.5 vulnerable to a denial of service attack via a malformed MIME header.

    SP4 includes no new features.
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    Client Updates

    Files for these clients are included in SP4:

  • Windows 16-bit Outlook client. We suspect, however, that this is not really an update.
  • Outlook Web Access language packs -- SP4_55langI.exe (14.2mb)
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    Other Tools
  • HTML Forms Converter -- Sp4_55fo.EXE (3.5mb)
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    Post SP4 Fixes

    Public fixes:

  • Microsoft MS02-037: Server Response To SMTP Client EHLO Command Results In Buffer Overrun
  • Microsoft Security Bulletin MS01-047: OWA Function Allows Unauthenticated User to Enumerate Global Address List
  • Microsoft Security Bulletin MS01-030 -- Incorrect Attachment Handling in Exchange OWA Can Execute Script
  • XADM Exchange Server 5.5 Post-Service Pack 4 Information Store Fixes Available
  • XADM Exchange Server 5.5 Post-Service Pack 4 Message Transfer Agent Fixes Available
  • XGEN Exchange Server 5.5 Post-Service Pack 4 Collaboration Data Objects Fixes Available
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    Hotfixes (contact Microsoft Support to obtain these):

  • XADM Information Store Service Hangs After You Apply Service Pack 4
  • XADM Mailbox Manager Cleans Messages According to PR_LAST_MODIFICATION_TIME in Service Pack 4
  • XADM Update Method Results in Duplicate Calendar Entries with Outlook 2002 - fixes CDO.dll, apparently resolves an issue with the Blackberry server application
  • XADM Information Store Intermittently Stops Responding and an Access Violation Occurs in EcDSDNFromSz -- Using Outlook 2003 to modify or import rules may cause the Exchange store to halt.
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    More Information
  • XADM Heuristic Changes for Address Book Views in Exchange Server 5.5 Service Pack 4
  • XCLN English Version of Fix for Store Provider Memory Leak
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    Updated Jul 15 2008
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