Please take a look at [login to view URL], a bittorrent library for .net. A very SIMPLE GUI needs to be created for it. All of the backend of for the application is there, all that needs to be done is the interface.
The GUI will only need to handle one file at a time. If you have experience with C#, this should be a very simple task.
Note: the package on the website contains samples of both a command line client and a GTK client. What is needed is a Windows Forms/Microsoft .NET client.
Please post if interested; more information will be provided.
Thank you for looking.