SLeek$ mcs *.cs
Program.cs(2,7): error CS0234: The type or namespace name `Generic' does not exist in the namespace `System.Collections'. Are you missing an assembly reference?
Program.cs(2,1): error CS0246: The type or namespace name `Collections.Generic' could not be found. Are you missing a using directive or an assembly reference?
Program.cs(3,7): error CS0234: The type or namespace name `Windows' does not exist in the namespace `System'. Are you missing an assembly reference?
Program.cs(3,1): error CS0246: The type or namespace name `Windows.Forms' could not be found. Are you missing a using directive or an assembly reference?
Compilation failed: 4 error(s), 0 warnings