Thanks for your detailed reply! With use Digest::SHA; I can at least compile my program into an executable:
pp -x --gui -o my_program.exe my_program.pl The executable doesn't run though. The process appears in the Task Managers list of processes and then just dies and disappears. No messages, no errors in the console window. I have the feeling I'm making an obvious, stupid, major mistake. It can't be that difficult to create a running executable, can it? Regards, Nele