You can't.
--
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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"Peter Mostovoy" <Peter
(E-Mail Removed)> wrote in message
news:2F8509E8-BD42-4F46-9929-(E-Mail Removed)...
> I receive/send and have to file about 100 e-mails per day WITH
> attachments.
> As these files are legal documents I keep them in a tree format, that is
> sub-folders/sub-directories by country/customer/project.
> In order to make backups easy I make a new PST every 6 months, with the
> date of creation.
> Every PST has the same tree format.
> HERE IS THE PROBLEM:
> I need to keep the Older trees "live" and viewable in Outlook, but I don't
> want to ACCIDENTALLY move mail to them.
> Thus how can I lock a PST file so that it is read only (IF you do this by
> changing the attributes Outlook cannot even open it)
> HELP