additional mailboxes registry setting

The process to add/open an additional mailbox, i am using the following:
Click Tools/Email Accounts
View or change existing...<Next>
Highlight your account, and click Change
Click More Settings
From the Advanced tab, click Add under mailboxes to open additional mailboxes with your profile...

however, where does this get stored?  Is it stored in the Registry, in the current user directory and if so where is the location?

i have found articles saying you need to look at the sid of the machine and then drill down to this location -

HKEY_USERS\MACHINE SID ID - \Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook

 but this location does not exist in the current user keys! Surely the user sid is just a replica of the current user directory in many ways?

thanks in advance....
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The profiles are stored in HKEY_CURRENT_USER\\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\ as you say above, but under this key the subkey names will match the names of the profiles as defined in the Control Panel Mail applet. So it won't necessarily be called 'Outlook'.

Check in the control panel Mail applet for the name of the profile and then check in the registry location for that name. The profile settings should be in there. It is not really stored in any useable form and although the additional mailboxes are in there, I'm not sure whether you'll be able to automate the addition of these mailboxes by this method.

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speechlysAuthor Commented:
ok thanks, do you know of any other way or method to do this?
This is sometimes done at install time - you can customize the installation of Outlook using tools available in the Office Resource Kit (I think you can download this from the MS website). Alternatively (as you've probably already deployed office) you might want to look at creating a customized PRF file:
speechlysAuthor Commented:
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