C# Simple File Server (For uploading)

I want to write on C# very tiny simple file server for uploading and storing files of size 1-4 MBs. Please give me advice how to开发者_C百科 make it in shorten time without coding everything by myself. Maybe you could recommend some library or engine for it;)

Thank you very much!!!

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http://www.c-sharpcorner.com/UploadFile/saurabhnandu/FileSharingServerinCSharpn.NET12032005003904AM/FileSharingServerinCSharpn.NET.aspx