Windows Contacts
Windows Contacts is a contact manager that was included in Windows Vista, Windows 7 and Windows 8. It replaced but retained most of the functionality of Windows Address Book, and works with Windows Mail.
Windows Contacts uses a new XML-based schema format. Each contact appears as an individual .contact file, in which custom information including pictures can be stored. Window Contacts features extensibility APIs for integration with other applications and for storing custom information. The legacy *.wab format and the open standards *.vcf (vCard) and *.csv (CSV) are also supported.
Features
Windows Contacts is implemented as a special folder in Windows Vista and Windows 7. It is in the Start Menu of Windows Vista and can be run in Windows 7 by searching for 'Contacts' (or 'wab.exe') in the Start Menu. Contacts can be stored in folders and groups.
It can import vCard, CSV, WAB and LDIF formats.
It can export in vCard 2.1 and CSV formats. Users can right-click a contact to quickly convert it to vCard format and send it to anyone.