I use HTMLViewer with ‘native’ renderer which is a wrapper for MS EXplorer (I think). Upon loading a PDF I get a message that ‘PDFNetc.dll is missing’.
When I use Explorer and open the PDF no messsage and the PDF is rendered OK.
Putting PDFNetc.dll in the .exe folder does not help. Switching to Webkit rendering does not show the PDF.
What version of explorer? Could it have something to do with allowing Explorer plugins?
When I open explorer I tend to have to allow plugins. Maybe that doesn’t work with the HTMLviewer?
Just guessing.
On newer versions of Windows (since Vista), if you look in your list of printers you will see “Microsoft XPS Document Writer.” It acts like a printer so any file that can print can create the XPS file.