I a currently writing a .NET port of some classes originally written in PHP and I need to encode some strings to be safe for use in a URL. The catch is that I am writing this in a class library so I do not have access to system.web.httputility. Everything I have seen online is based around web applications that have access to such features. What I need is a url encoding functions that will function in a class library. Does .NET have such a feature?