title: How to convert a string to a url encoded
body: <p>I want to be able to convert for example ™ to <code>%99</code> but i dont know what encoding is that 
  I tried looking at httputility class but i dont get <code>%99</code> i get other wierd signs can you please help me? thanks
  Im using C#</p>
  
  <p>I want to do that so my the login would work with all chars like ™ im using http post method for a vb forum i need first to correct the encoding</p>
  
  <p>EDIT : Not sure but can i just change the Content-Type : application/x-www-form-urlencoded
  to something that accepts signs like trademark so it would work?</p>