Access to designated computers within the LAN, download files, read data

Once encountered the need to download the server files to the client on the situation (PS: Server machine is also a common PC), deliberately check n more information, Post asked a lot of seniors

WebClient WC = new WebClient ();
public void Download (string Add, String savepath)
{
try{wc.downloadfile (Add,savepath)}
Catch{...}
finallly {wc.dispose ();}
}

The actual use is not big, because it has a fatal disadvantage, is to access other computers, the need to login account and password, or not get in, unless you first log in to someone else's computer and then execute this code, but it is not scientific

Access to designated computers within the LAN, download files, read data