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    Microsoft Internet Security and Acceleration (ISA) Server 2000 RPC Filter Blocks Outlook Traffic from Computers Running Windows Server 2003 Service Pack 1 (SP1)

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    Outlook 2003 running on Windows Server 2003 Service Pack 1 cannot connect to an Exchange 2003 server through ISA Server 2000. This problem may also affect earlier versions of Outlook.
    • Version:

      1200.418

      File Name:

      ISA2000-KB897716-X86-ENU.exe

      Date Published:

      5/26/2005

      File Size:

      353 KB

        Windows Server 2003 SP1 makes significant changes to the Remote Procedure Call (RPC) service. Some of the changes may cause conflicts with ISA Server’s RPC filter (rpcFltr.dll). As a workaround, disable the RPC filter. Install this update to fix this issue without disabling the RPC filter.
    • Supported Operating System

      Windows Server 2003 Service Pack 1

        This issue affects the following products:

        • ISA Server 2000
        • Outlook 2003 running on Windows Server 2003 SP1
        • To fix this issue on ISA Server 2004 Standard Edition, install the update from: ISA Server 2004 Standard Edition RPC Filter Blocks Outlook Traffic from Computers Running Windows Server 2003 SP1 (http://go.microsoft.com/fwlink/?LinkID=47521).
        • To fix this issue on ISA Server 2004 Enterprise Edition, install the update from: ISA Server 2004 Enterprise Edition RPC Filter Blocks Outlook Traffic from Computers Running Windows Server 2003 SP1 (http://go.microsoft.com/fwlink/?LinkID=47520).
      • 1. Download the file by clicking the Download link on this page to start the download, or choose a different language from the drop-down list and click Go.

        2. Do one of the following:
        • To start the installation immediately, click Open or Run this program from its current location.
        • To copy the download to your computer for installation at a later time, click Save, or Save this program to disk.

        Installation requirements:
        • The update should be installed on the ISA Server computer.
        • After installing this update a computer restart is required. We recommend that you schedule an outage before installation.
        • Before installing this update on ISA Server 2000 computers, install the following:
        -ISA Server 2000 Service Pack 2 (http://go.microsoft.com/fwlink/?LinkId=47523)
        -ISA Server 2000 RPC Filter Update for Windows Server 2003 Service Pack 1 (http://go.microsoft.com/fwlink/?LinkId=47524).

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