I want to build a program that detects if a usb (or two or more) are plugged in 
(and copy all contents to any folder on a hard disk) 

Any ideas? I have this, 

```
using System.Runtime.InteropServices;

```

But it is not the easy way (that I believe). I want something easy. 

I have another idea (if (folder exist) then copy) something -- but there may be a problem with that, and I want a good solution. 

There may also be a tool called SerialPort; can I use it? If so, how do I use it?