It's been a while since I used OE but here's the step by step I used when syncing the notebook to the desktop. To use as an archive would require performing the following tasks now (to create the archive) and then again in the future to backup your newer emails, then delete the newer emails, and restore the archive. Then when you're through delete the restored archive and restore the newer emails. :rotate: :scrambled:
Make a copy of all the files in the folder that contains the dbx files,
C:\Windows\Application Data\Identities\{#}\Microsoft\Outlook Express
Also do a search for *.wab and back that up as well (address book),
C:\Windows\Application Data\Microsoft\Address Book
EXPORT these 4 registry keys to the desktop:
HKEY_CURRENT_USER\Identities\{GUID}\Software\Microsoft\Outlook Express
(Where GUID represents your Identity number.)
HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager
HKEY_CURRENT_USER\Software\Microsoft\Outlook Express
HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4\Wab File Name
To copy the messages to a new machine, copy all the files to the exact directory where they were located in their previous life.
Then, before opening OE, IMPORT the 4 keys into the registry. If OE has already been run on the computer to which you are restoring, then DELETE those 4 keys from the registry (back it up first) before importing the 4 saved ones.
To backup and restore a single OE5 mail folder, save the appropriate dbx file. To restore, create a new folder in OE5 (call it archiv1, for example) and access it once. Then close OE and find archiv1.dbx and delete it. Make a copy of the folder you want to restore and rename it to archiv1.dbx. Then copy that file into the directory where the previous file was deleted. Open OE and the messages you wanted to restore will be accessible via opening that archiv1 folder.