What specific requires this exact version?
Search results for "magics 2003" will almost exclusively point you to . This version was known for its improved user interface and its ability to handle new file formats like .3MF (3D Manufacturing Format). It's a stable and widely used version, though it is now considered legacy software. magics 2003 64 bit download link
A free, open-source 64-bit tool for complex mesh editing. What specific requires this exact version