{{works with|Mono|2.6.7}}
{{works with|Mono|2.10.x}}
{{works with|Mono|3.x.y}}
{{works with|.NET|3.5}}
{{works with|.NET|4.0}}
{{works with|.NET|4.5}}
One Line version:
<syntaxhighlight lang="dylan.net">Console::WriteLine("Hello world!")

Hello World Program:
<syntaxhighlight lang="dylan.net">
//compile using the new dylan.NET v, 11.5.1.2 or later
//use mono to run the compiler
#refstdasm mscorlib.dll

import System

assembly helloworld exe
ver 1.2.0.0

class public Program

   method public static void main()
      Console::WriteLine("Hello world!")
   end method

end class