Microsoft KB Archive/282400

= XCCC: Error Message Occurs When You Run the LAST Command for POP3 in Exchange 2000 =

Article ID: 282400

Article Last Modified on 2/27/2007

-

APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

-



This article was previously published under Q282400



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 use a Post Office Protocol 3 (POP3) client to connect to an Exchange 2000 computer using POP3, and you run the last command, you may receive the following error message:

-ERR Protocol error



CAUSE
This issue can occur because support for the last command is not enabled in Exchange 2000 by default.



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 issue, enable support for the last command:  Start Registry Editor (Regedt32.exe). Locate and click the following key in the registry:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\POP3Svc\Parameters

 On the Edit menu, click Add Value, and then add the following registry value:

Value name: Compatibility

Data type: REG_DWORD

Radix: Hexadecimal

Value data: fffffffb

 Quit Registry Editor.

Additional query words: exch2kp2w

Keywords: kberrmsg kbprb KB282400

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.