Outlook's archive settings aren't exposed at all. You'd have to use some
other API or object model to get at them. The folder settings are accessible
using CDO or Redemption or Extended MAPI, the global settings are in the
registry.

I don't know of any ways to get around your cached problem if a synch isn't
matching the server side and local OST settings. The only thing I see in
your code that could be a problem is the assumption that the archive
properties you are accessing always will exist in the folders. In many cases
the properties won't exist until they are created. So you might want to try
getting a property or setting it and if you get an error then using the Add
method to add those properties to the folder.

For a CDO sample to iterate folders just use Michael's Outlook example and
change the types to CDO types. Otherwise the principles are identical.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm