Microsoft KB Archive/315044

= You receive the &quot;Windows Installer error 1605&quot; error message when you start Outlook 2002 =

Article ID: 315044

Article Last Modified on 7/28/2006

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APPLIES TO


 * Microsoft Outlook 2002 Standard Edition

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This article was previously published under Q315044



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
When you start Outlook 2002, you may receive the following error message:

Microsoft Outlook cannot run the add-in. Microsoft Outlook cannot install the necessary files due to Windows Installer error 1605.

If you start Outlook with the /safe command-line option in effect, you may receive the error message six times before Outlook starts. However, subsequent starts of Outlook may not generate the error message.

You may receive the error message twice when you click Customize on the Tools menu.



CAUSE
This behavior can occur because a previously installed component of Outlook 2000 was not completely removed during the upgrade to Outlook 2002.



RESOLUTION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this behavior, delete two keys from the registry.
 * The first registry key references the Fldpub.dll file, a component of Net Folders that is not supported in Outlook 2002. Removing this registry key resolves the behavior that results from clicking Customize on the Tools menu.
 * The second registry key references add-ins in Outlook. Removing this registry key resolves the behavior that resulted from starting Outlook 2002 with the /safe command-line option in effect.

Follow the appropriate set of steps.

In Microsoft Windows 95 or 98 or in Microsoft Windows Millennium Edition (Me)
 Click Start, click Run, type Regedit, and then click OK to start Registry Editor (Regedit.exe). Locate the B4AE92CC2CB71D119A12000A9CE1A22A value under the following key in the registry:

HKEY_CURRENT_USER\Software\Microsoft\Installer\Components\

 On the File menu, click Export Registry File, type a file name, and then click Save to back up the key. On the Edit menu, click Delete. Locate the D5BE92CC2CB71D119A12000A9CE1A22A value under the following key in the registry:

HKEY_CURRENT_USER\Software\Microsoft\Installer\Components\

 On the File menu, click Export Registry File, type a file name, and then click Save to back up the key.</li> On the Edit menu, click Delete.</li> Quit Registry Editor.</li> Start Outlook 2002.</li></ol>

In Microsoft Windows NT 4.0, Microsoft Windows 2000, or Microsoft Windows XP
<ol> Click Start, click Run, type Regedt32, and then click OK to start Registry Editor (Regedt32.exe).</li> Locate the B4AE92CC2CB71D119A12000A9CE1A22A value under the following key in the registry:

HKEY_LOCAL_MACHINE\Software\Classes\Installer\Components\

</li> On the File menu, click Export Registry File, type a file name, and then click Save to back up the key.</li> On the Edit menu, click Delete.</li> Locate the D5BE92CC2CB71D119A12000A9CE1A22A value under the following key in the registry:

HKEY_LOCAL_MACHINE\Software\Classes\Installer\Components\

</li> On the File menu, click Export Registry File, type a file name, and then click Save to back up the key.</li> On the Edit menu, click Delete.</li> Quit Registry Editor.</li> Start Outlook 2002.</li></ol>

Keywords: kberrmsg kbenv kbsetup kbprb kbstartprogram KB315044

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