title: How to convert Quoted-Print String
body: <p>I'm working on French String in .NET
  Decoding a Mail body , I receive "Chasn=C3=A9 sur illet"
  I would like to get "Chasné sur illet" 
  and i don't find any solution aver 2 days web search.</p>
  
  <p>C# ou VB.NET
  Can anyone helps me ?</p>
  
  <p>thanks </p>