An update on my current nixps developments:
-Implemented document merging in the nixps library.
-Packaged the nixps library as a DLL + interface headers.
-Profiled speed and memory usage, optimizations, bugfixes.
-Did a lot of thinking about the user interface of XPS Workbench + some prototyping.
-Reworking the user interface of XPS Workbench.
-Implementing 'package explorer' windows for XPS WB, this allows you to look into an xps file/package to see its documents and pages (incl. thumbnails).
-Moving XPS WB over to a MDI interface, aving fun with tools and toolbars ;-).
I expect to release a new technology preview of XPS Workbench later this month, which will include the document merging feature, and the library SDK which allows to use the library direct in your C/C++ applications.