c# Winform App: Document Uploader

I have a list of 20 sites that allow user to upload documents... I need a program that allow user to : ** Create an account on the selected site ** Upload a document to that site (fill document description like (title, tags, description...) even along with document upload or after the document upload (depends on the site) For the sites that require captcha resolution, I am using deathbycaptcha API to resolve it, so the developer can download the image and put the value in debug before sending the value, (implement death by by captcha resolution make your application more interesting, but I need that the program download the image at least)... Important: the developer can't use webbrowser control or any external browser to do the job, he should use : httpwebrequest or webclient or sockets to do that (socket is Favorited)... The sites list is : [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] This project is the little one of 8 other incoming projects (forum poster, subdirectory poster, article poster, video uploader...) so the winner will do all these projects too.. PS: Make the program able to do more than task at the time using threads, is a great thing to have but not mandatory...