That last anonymous was comment me. I didn't realize I was logged out when I posted it. Adding this comment to stay up-to-date with this thread.
Update: It seems that the error is the same regardless of installed or portable version. The difference appears to be related instead to the assocation destination: When my association copies jpg files from network location to a fixed destination, the error doesn't occur. When my association copies jpg files and also sorts them by date and camera model, the error occurs.
Update: It seems that the error is the same regardless of installed or portable version. The difference appears to be related instead to the rule: When my association copies jpg files from network location to fixed destination, the error doesn't occur. When my association copies jpg files and also sorts them by date and camera model, the error occurs.
AutoIt Error Allocating Memory - Dropit Portable