For most software, it's up to the user to provide the equipment and environment needed to run the program. If you can't do that, it won't run. But the problem lies in not knowing what those requirements are. I created this page (and this site) to help answer those kinds of questions.
This is a potentially powerful tool that we're given to work with, so it's important that we don't abuse it, in light of recent events I've set up an article here, which you should read before downloading and using PMD Editor. Just remember what Peter Parker's uncle said xP
Alternatively, PMD Editor can now export DirectX files. It's possible that you could use it for data conversion outside of MMD related purposes.
this page. Also see the translated version. From the VPVP Wiki homepage, you can find it by clicking 'How to Use PMD Editor' and then 'Version Information'. Since file and links are constantly being changed around, download methods may change from site to site.