Your problems are a great big heap of mumbo jumbo to me but I did
what I usually do when I have similar problems and looked up the
file with Google to find out what PSTPRX.DLL actually was. I found
this great spiel and think it may be able to help you understand
your problems.
http://mmm2.web.cern.ch/mmm2/Faq/contents/0_0_pstprx.asp