Rank Checker

[D i x y]

Hello Friends I want to make a windows application that can check any website rank according to the keyword on any of the search engines like Google, Yahoo, and MSN. Can any one help me how can i start.. i got a link that is of web application i tried it to convert into C# windows application but i am unable to do that.. http://www.codeproject.com/KB/aspnet/search_engine_rank_check.aspx