I downloaded Oxide, copied the RustDedicated folder (win2008) , The mod I chose is a .CS .. I dont see anyting that allows this.. the xtraction didnt give me any C sharp .. I see no Oxide folder in the Rustdedicated and all the examples online seem to have folders and files that dont exist. Is all of the files in the zip? How do I get teh CS file to work?  

Where did you download the Oxide?

The oxide folder gets generated when the server starts. Start your server first

.cs is a file type used for C# projects, which in our case we compile these as usable plugins when your server starts with Oxide. If you do not see any "oxide" folder, then Oxide has not been started with the server. If you do not see any indication of Oxide while the server is running, it's very likely you do not have Oxide installed else uninstalled it by updating the server.

Starting the server with the oxide first fixed it.. thanks people :) Your all awesome.