I am using Maya 4 on Win2k. I downloaded the Polytrans demo from Okino.com, and installed it. I got this error from the Maya shell:
loadPluginCallback "C:/AW/Maya4.0/bin/plug-ins/ptio.mll" "plug-in";
// Error: The specified procedure could not be found.
//
// Error: No plug-ins loaded - "The specified procedure could not be found.
". //
// Warning: Could not load C:/AW/Maya4.0/bin/plug-ins/ptio.mll as a plug-in //
// Result: 0 //
The plugin is definately located in that location.
When I bring up my plug-in manager, there is nothing there except "C:/AW/Maya 4/bin/plug-ins/" and "Other registered plugins". There are no plugins listed, and no functionality shown.