Friday, August 07, 2009

Modifying the number of items in the Outlook MRU

Philip Richardson posted about this a long time ago, but his post has actually not available any more. This is a great hack to make an end user's life a lot easier. By default the Outlook Most Recently Used (MRU) list is set to 7 items. A lot of users I talk to like it to be longer. And there is a simple registry modification that can be made to increase (or decrease) the length of the list.

Add the following reg key to the client machine that wants the length of the MRU changed:

Value Name: MaxRegardingObjectListCount

Then just put the number you want displayed (in Decimal format) and you're all set. You will most likely need to close your Outlook and reopen it for the changes to take effect.

Also, please note that you should know what you are doing when you are changing the registry (be careful), as if you modify it incorrectly it could make your application, or computer not work properly any more. Modifying the registry is done at your own risk.

But that should get you going. Enjoy,

David Fronk
Dynamic Methods Inc.


Dan said...

Can you provide a detailed example for the following use case:

Using MS Outlook 2003, when creating an appt., there's a dropdown list for the "Location:" field. It looks like it allows a max. of 10 MRU items. How can I increase it to say 50? For that matter, what's the highest # this could be set for?


Dynamic Methods said...


I am not aware of any way to modify any MRU list in Office 2003. The MRU's are specific to Office 2007. Unfortunately I have not seen any way to modify the length of the "Location:" field for Office 2003.

David Fronk
Dynamic Methods Inc.

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