How to UrlDecode without having System.Web dll in c#
<p>I'm about to create a self-hosted Web API application, and somewhere I need to URL Decode the input. But I truly don't want to add a reference to System.Web.dll, because AMAIK, it's a heavy DLL and one of the main reasons of getting far from ASP.NET and IIS.</p>

<p>If I'm right, and I don't add a reference to System.Web, then how can I URL Decode effectively without bugs?</p>