The NiXPS SDK gives you the ability to process XPS files in your application. It's a cross-platfrom library, with api's for C/C++ and .NET. It provides powerfull high-level functionality, but also detailed low-level access to all parts of an XPS file.

StyleControls is a powerfull package of components, which based on controls from BusinessSkinForm, DynamicSkinForm and SkinAdapter, but uses Classic drawing, system Themes and VCL Styles. This package contains the unique solutions to extend standard VCL controls and also have many unique, advanced controls.