UriRemoteFilename

		string hreflink = "http://dpomain.com/path/somefile.txt";
		//string hreflink = "http://cdn.p30download.com/.Mozilla.Firefox.v58.0.x86_p30download.com.zip";
		Console.WriteLine("link: "+ hreflink);
		Uri uri = new Uri(hreflink);
		Console.WriteLine("uri: "+ uri);
		string filename = System.IO.Path.GetFileName(uri.LocalPath);
		
		Console.WriteLine("GetFileName: "+ filename);
		Console.WriteLine("GetFullPath: "+ System.IO.Path.GetFullPath(uri.LocalPath));
		Console.WriteLine("============= ");
		var uri2 = new Uri(hreflink);
		var filename2 = uri.Segments.Last();
		Console.WriteLine("path2: "+ filename2);