title: Make .NET exes compatible with all windows users (xp to 7)
body: <p>If I create an application in c# 3.5, how could I make the exe compatible with all windows users? 
  I tried creating a couple of simple applications and send the exes from the bin folder and everyone has complained that they could not use them because they didn't have the update platform.</p>
  
  <p>Any suggestions?</p>