PresentationCore
is a part of WPF, which is a .NET Framework built-in feature. You should be able to add it easily for both MVC and classic ASP.NET for .NET Framework v3.5 or later.
Please note that the assembly name used by PresentationCore.dll
is plain PresentationCore
. It does not have any prefixes (e.g. System.PresentationCore, Microsoft.PresentationCore). Perhaps this is the reason you're having trouble finding it on the Framework Assemblies list.