Windows Live Mail Address Book API - a framework for reading, updating and creating contacts in Windows Live Mail address book.
The API allows retrieving a list of available Windows Live Mail 2011 contacts, reading and updating more than 60 contact properties, adding new contacts and deleting existing contacts. Documentation of the Address Book API available online.
Two editions of Windows Live Mail Address Book API available: .Net 2.0 library for C# and Visual Basic.Net and COM library for native languages like Visual C++ and Delphi.
To get started read Quick HOWTO or browse Windows Live Mail Address Book API online documentation.