I found it.
C:\Documents and Settings\*USER*\Application Data\Microsoft\Outlook\*.NK2 is the file that holds those 'autocompleting e-mails'.
However I was wondering if you can use some sort of shared folders (like with IMAP), but still using POP3. I know that you can connect Excel with a database, but is it possible to do it with Outlook? For example to make a connection with some database that has the contacts.
When I setup a mail account with Outlook and send an e-mail to someone his name/e-mail is automatically saved in Contacts. Also when I write a new e-mail the recipient field has the autocomplete option with all the saved addresses. However I made a new Outlook profile so I could use shared folders with IMAP. I copied all the contacts from the old profile but the autocomplete option is gone. It appears only with e-mail I send afterwards. Is there any way to make Outlook always use the Contacts folder to autocomplete the addresses or maybe copy some file from the old profile that contain that data?
I hope you get what I mean, my english is not very good ^.^

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