Skydrive and Dropbox VB.NET Application

Need 2 similar windows desktop applications, one working with SkyDrive and one with Dropbox. They should offer the same features, i.e. they should both allow a user to - Sign up the application with the storage services using oAuth 2.0 - Retrieve the list of folders with properties (identify shared/public/private folders) - Retrieve a list of documents per folder with properties (name, modified date, size, etc.) - Create a shared/public/private folder - Change folder access (ex: from private to shared) - Upload a document to any folder (with progress bar) - Download a document from any folder (with progress bar) VB.NET is absolute must. Ideally without using 3rd party library. Windows 7, 8 The interface is of no importance as it will be integrated in a larger project.