vCard4Outlook   
http://www.4team.biz

Microsoft Outlook addon allows you to convert your contacts into the vCard format file. But you can convert only one contact at a time. Now, with VCard4Outlook,you can easily convert all or chosen contacts to the vCard format (vcf file, version 2.1 and 3.0) with a few clicks. Features: Import vCard format files to the chosen Outlook Contact Folder. Export any Outlook Contact Folder to the Vcard format files in the chosen windows folder. Integrated in Microsoft Outlook File menu and tollbar. Export/Import to/from one vCard (vcf) file. Correct Export/Import of all Outlook contacts fields, allow use it for contacts synchronization and backup. Contacts duplicate management.