Thanks for all your replies. However, I have solved my problem to generate PageMaker files (PMD) into PDF on a windows 7 machine. First I copied (not install) the entire Acrobat 5 folder from my old XP machine to the same destination on my windows 7. There, I have the "Acrodist.exe" file, which I later make use of to generate a PDF file. Secondly I simply installed a Zerox virtual post script printer changed the parameters to print to file and some other few adjustemnts, paper size etc. Hereafter, I can generate a Post Script file from PageMaker and this file do I put into Acrodist.exe and voila,I have a perfect PDF file
regards