title: How to add .Net 3.5.1 as a prerequisite in an Azure Devop YAML?
body: <p>We currently have a .Net solution being built on our custom agents. I just had to install a new agent and we noticed that the build was failing, because 2 of our tools were requesting it.</p>
  <p>Is there a way to force the installation of .Net 3.5.1 inside the YAML?</p>
  <p>Thanks!</p>