Which one is the best third party libary to convert XPS to PDF and XPS to DOC.
While gxps and ghostscript are a possible solution, the syntax of the accepted answer did not work for me.
I was able to use ghostscript and gxps using the following syntax:
C:\gxps-871.exe -sDEVICE=pdfwrite -sOutputFile=myfile.pdf -dNOPAUSE myfile.xps
One comment on tab path completion: gxps doesn't seem to understand some of the Windows 7 symbolic links like My Documents well. If you have trouble tab-completing to your path, consider a temp folder in c:.
Credit where credit is due: I got this syntax from this blog: http://minhtech.com/windows/convert-xps-to-pdf-without-printer-driver/