Contact Importer for Gmail, MSN, Yahoo and AOL in asp.Net

Project Info - I need contact importer to import contact from following provider. Gmail - Should support all domain whcih are associated with google account. example - [login to view URL], [login to view URL] Yahoo - Should support all domain whcih are associated with Yahoo account. example - [login to view URL], [login to view URL], [login to view URL] AOL MSN - example [login to view URL], [login to view URL] and all associated domain with MSN Support for other provider would be plus. Like facebook, linkedin, indiatimes etc Source Code - All code must be written in ASP.Net using C# only. Other language should not be use like php, java etc. Code can be written in VC++. Source code must be written using proper coding standards, guidelines and commenting. All source code need to deliver at the time of delivery. Other important Information - 1. O-Auth (O Authentication) must not be use to import contact. All contact must be import without O-Authentication. Support with O Auth will not be consider. 2. I would like to see demo before making payment. 3. It would be plus point if you can provide support for some duration (like six month or one year). Please post if you are interested or let me know if you need more information or have any question.