title: WebServices on Unity, Dll, compatibility with .Net 4.0
body: <p>I'm trying to use web services on unity.
  I used svcutil to generate a proxy class, however the proxy class was using "System.Threading.Tasks".</p>
  
  <p>I noticed that System.Threading.Tasks wasn't aviable on .Net 3.5.
  So I went to player setting and I changed <a href="https://imgur.com/DtG939s" rel="nofollow noreferrer">to .Net 4.x</a></p>
  
  <p>But now I have an other issue, and I cannot find a way to fix it, I need to use System.Web.dll and System.Web.Services.dll to make my web service work, however, the dll that are include in Program Files\Unity\Editor\Data\Mono\lib\mono\2.0 <a href="https://imgur.com/i3371GW" rel="nofollow noreferrer">are all targets for .Net 3.5.</a></p>
  
  <p>So that mean I cannot use them on .Net 4.x</p>
  
  <p>I've been looking for quiet long and was unable to find any answer.
  I can add the code to the proxy class here if it's require, but I don't think it would be useful. Should I download those dll somewhere? 
  Anyone ever seen thoses issues somewhere? </p>