C# Or VB.NET Language DLL Injector Source

C# or VB.NET code language using DLL injector's source code. The injector should have only one button in middle of the form, clicking the button it would download my DLL file automatically from [login to view URL] if I just replace the link with my dll's download link in the source code. After downloading the file is ready, it cut's the file from downloads folder to path "C:\Windows\" and after it injects it to process called "[login to view URL]". About manualmapping and loadlibrary method's of injecting, I would first like to know what is their difference. I know this is very small and easy project/source code to make so keep it simple as possible.