The reason I think I need it, is because I'm displaying text I get from websites in a Windows 8 store app. E.g.
I recommend using System.Net.WebUtility.HtmlDecode and NOT
This is due to the fact that the
System.Web reference does not exist in Winforms/WPF/Console applications and you can get the exact same result using this class (which is already added as a reference in all those projects).
string s = System.Net.WebUtility.HtmlDecode("é"); // Returns é