Q215554: XADM: How to Change the POP3-Download Order

Article: Q215554
Product(s): Microsoft Exchange
Version(s): winnt:5.5
Operating System(s): 
Keyword(s): kbFEA exc55 EXC55SP3Fea
Last Modified: 11-JUN-2002

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
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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:

  Q256986 Description of the Microsoft Windows Registry

SUMMARY
=======

Currently, there is no mechanism in Exchange Server 5.5 to control the download
order of POP3 messages. In Exchange Server 5.0, the download order for messages
was from old to new. In Exchange Server 5.5, the download order for messages is
reversed and changed from new to old.

MORE INFORMATION
================

This feature is available in the latest service pack for Exchange Server version
5.5. For additional information, please see the following article in the
Microsoft Knowledge Base:

  Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack

The English version of this feature should have the following file attributes or
later:

Component: Information Store

+-----------------------+
| File name  | Version  | 
+-----------------------+
| Gapi32.dll | 5.5.2542 | 
+-----------------------+
| Mdbmsg.dll | 5.5.2542 | 
+-----------------------+
| Store.exe  | 5.5.2542 | 
+-----------------------+

This feature was first included in Exchange Server 5.5 Service Pack 3.


In addition to the new files noted above, the following registry changes must be
made to enable this functionality. To make the registry changes, perform the
following steps:

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.

1. Stop the Microsoft Exchange Information Store service.

2. Apply the fixed files noted above.

3. Start Registry Editor (Regedt32.exe).

4. Go to the following location in the registry:

  HKEY_LOCAL_MACHINE\CurrentControlSet\Services\MSExchangeIS\ParametersSystem

5. On the Edit menu, click Add Value.

  Value Name: POP3 Compatibilty
  Data Type: REG_DWORD
  Value: 0x0, 0x40
  Default: 0x0 (not in registry by default)

  Description: This parameter control the download order for the POP3 messages,
  Set this value to 0x40 and you will get the message download order of new to
  old. Set this value to 0x0 and you will get the message download order of old
  to new.

6. Click OK, and quit Registry Editor.

7. Restart the Microsoft Exchange Information Store service.

Additional query words: OL OL98
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Keywords          : kbFEA exc55 EXC55SP3Fea 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbhowto kbinfo

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