title: C# application doesn't run on another computer
body: <p>I complied my C# windows forms application on Visual Studio 2008 with configuration "Release". When I try to run it on another computer, no windows are shown at all. Complied on Windows 7, another computer has windows xp installed.
  What can it be?</p>
  
  <p><strong>Added</strong>:
  I didn't create any installer. Another machine has .net framework 3.0, not 3.5 installed, but simple hello world application works just fine. I tried to copy the program to another folder on my computer - no changes.</p>