AFAIK, that's not possible with user-defined fields.
I'm not sure if it is possible when modifying the form or any other method
which requires additional programming. You might want to check with the
developers in;
outlook.program_forms

--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

http://www.msoutlook.info/
Real World Questions, Real World Answers

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"John Bacon" wrote in message
...
Ok I want a user-defined field in a inbox that will only allow entries
from a
pre-defined drop-down list, in the same way that the importance field only
allows values fromlow, normal, high

"Roady [MVP]" wrote:

What are you trying to achieve?

--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

http://www.msoutlook.info/
Real World Questions, Real World Answers

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"John Bacon" wrote in message
...
How can I do this?