Concole Cursor position

I am trying to adjust the cursor position for a console project I am working on. This is taking right from the MSDN website (Microsoft's C++ database), but when I compile it says

"6 C:\Documents and Settings\j\My Documents\SimSTATS\test.cpp expected namespace-name before ';' token "

and highlights the line "using namespace System;"

Anyone help?

I've never used that before, I've only used "using namespace std;", in addition the above issue/question, can anyone briefly explain or point me to literature that could explain the different between namespace std and namespace System and when to use them?

Code:

---

// This example demonstrates the
//    Console.CursorLeft and
//    Console.CursorTop properties, and the
//    Console.SetCursorPosition and
//    Console.Clear methods.
using namespace System;
int origRow;
int origCol;
void WriteAt( String^ s, int x, int y )
{
  try
  {
      Console::SetCursorPosition( origCol + x, origRow + y );
      Console::Write( s );
  }
  catch ( ArgumentOutOfRangeException^ e )
  {
      Console::Clear();
      Console::WriteLine( e->Message );
  }

}

int main()
{

  // Clear the screen, then save the top and left coordinates.
  Console::Clear();
  origRow = Console::CursorTop;
  origCol = Console::CursorLeft;

  // Draw the left side of a 5x5 rectangle, from top to bottom.
  WriteAt( "+", 0, 0 );
  WriteAt( "|", 0, 1 );
  WriteAt( "|", 0, 2 );
  WriteAt( "|", 0, 3 );
  WriteAt( "+", 0, 4 );

  // Draw the bottom side, from left to right.
  WriteAt( "-", 1, 4 ); // shortcut: WriteAt("---", 1, 4)
  WriteAt( "-", 2, 4 ); // ...
  WriteAt( "-", 3, 4 ); // ...
  WriteAt( "+", 4, 4 );

  // Draw the right side, from bottom to top.
  WriteAt( "|", 4, 3 );
  WriteAt( "|", 4, 2 );
  WriteAt( "|", 4, 1 );
  WriteAt( "+", 4, 0 );

  // Draw the top side, from right to left.
  WriteAt( "-", 3, 0 ); // shortcut: WriteAt("---", 1, 0)
  WriteAt( "-", 2, 0 ); // ...
  WriteAt( "-", 1, 0 ); // ...

  //
  WriteAt( "All done!", 0, 6 );
  Console::WriteLine();
}

/*
This example produces the following results:

+---+
|  |
|  |
|  |
+---+

All done!

*/

---

this is seems to be a managed code
You should compile it as a .Net project