Hi there, I have created a simple VBA macro and Delphi API program that batch saves a number of Sldprt files (from a chosen directory) to eDrawings (to a chosen directory). I am having crash/hang problems - I was wondering if anyone else has any problems using the SW API to batch process a large number of files? The crashes are not consistent with time or number of parts -so I am thinking it could be a memory issue. Even just a simple 'open part' and 'close part' for a large number or parts (say 600) does not work. I have tried the Macro on many different PC's - does anyone have a macro that does a batch operation that works? so I can test. Thank you Emma Curtis