A few weeks ago I made two versions of scenProc available on the development releases page. One for 32 bit operating systems and one for 64 bit operating systems. Since both of these files are rather big, due to the inclusion of all the GDAL/OGR libraries, it means that downloading an updated version can take a while. Therefore I have now added a third version, called scenProc update. This version only includes my own files and not the external libraries. So once you have installed either the x86 or x64 version, you can use the update version to patch it to the latest development release every time.