title: ASP NET C# System.Windows.Form does not exist in the class or namespace 'System'
body: <p>ASP NET C#  using System.Windows.Form namespace producce error "The type or namespace name 'Windows' does not exist in the class or namespace 'System' (are you missing an assembly reference?)".</p>
  
  <p>I test it with WinXP ver 2002 SP3, 
  MS Visual Studio Microsoft Development Enviroment 2002 ver 7, framework 2.0;
  and with
  Win7Professional, MS Visual Studio 2008 Express, framework 3.5 (inside Win7?)</p>