Outlook 2010 cached mode registry entry

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I am looking for the registry entry to enable/disable cache mode for Outlook 2010. I know how to do it in Outlook 2003/2007.

For Outlook 2003/2007 the location is here:

[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\<ProfileName>\13dbb0c8aa05101a9bb000aa002fc45a]

Outlook 2003:

00036601 (REG_BINARY)

enabled value; 84 01 00 00
enabled with Public Folders/Favorites: 84 05 00 00
disabled value; 04 00 00 00

Outlook 2007:

enabled value; 84 19 00 00

enabled with Public Folders/Favorites: 84 05 00 00
disabled value; 04 10 00 00

In Outlook 2010 you can browse to the same place in the registry but there is only one entry in there. I tried enabling cache mode from Outlook and then exporting the key. I then disabled cache mode and tried merging the key and it did not work. There must be somewhere else in the registry that Outlook 2010 is writing to.

Also I am familiar with how this can be done via group policy but I need this in a script which I will be deploying via Zenworks so the registry key is the optimal place for me to do this.

Thanks in advance

Ed Crowley [MVP]

You might be able to find it by looking to see how the GPO does it.Ed Crowley MVP " There are seldom good technological solutions to behavioral problems."


I found the solution using a Registry Tracer. I should have searched the key. (doh!). In the registry it is located in d4c3fff326ad1c498c9982bc456d4c6a in Outlook 2010.

Outlook 2010

Cached Exchange Mode is controlled by the following key;

[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\d4c3fff326ad1c498c9982bc456d4c6a]

00036601 (REG_BINARY)

enabled value; 84 19 00 00
enabled with Public Folders/Favorites: 84 05 00 00
disabled value; 04 10 00 00
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