GSview 5.0 for OS/2 (2013/06/19) is available for download:
http://hobbes.nmsu.edu/h-search.php?key=gsv50os2
GSview is a graphical interface for Ghostscript under MS-Windows or OS/2. Ghostscript is an interpreter for the PostScript page description language used by laser printers. For documents following the Adobe PostScript Document Structuring Conventions, GSview allows selected pages to be viewed or printed. GSview requires Ghostscript 7.09 or later.
Official home page: http://pages.cs.wisc.edu/~ghost/gsview/index.htm