Simply unzip the file into a directory and run the executable, either from the command line supplying the filename of one of the included data sets (ending in .ptm), or from explorer by dragging one of the PTM files onto the PtmViewer.exe application. The objects in the tablet1.ptm, tablet2.ptm and ushabti.ptm datasets are artifacts belonging to the Archaeological Research Collection of the University of Southern California. Copy the file glut32.dll to your Windows directory. Start PTM Viewer by dragging a PTM file onto the PTM Viewer application.
For instructions in the viewer, either select help from the menu accessible with the right mouse button, or press F1. Some functionality requires a Middle mouse button. If you do not have a middle mouse button you may emulate it by holding down the shift key and using the left mouse button. Most of the functionality described in the paper is accessible using the menu activated with the right mouse button.