pfivX.X.tar.Z contains the current beta of the Inventor loader
for IRIS Performer 1.2.

pfiv1.0.tar.Z: initial version
pfiv1.1.tar.Z: added support for machines without OpenGL, e.g. VGX under 5.2.
pfiv1.2.tar.Z: bug fixes
pfiv1.3.tar.Z: bug fixes
pfiv1.4test.tar.Z: test version; fix memory limitation for very large objects

pfiv_srcX.X.tar.Z -> source code only.