Files may be plain text or other com- piled scripts. Normally, plain text files are compiled as AppleScript. Save the resulting script as execute only. Place the resulting script in the data fork of the output file.
Type is a four-character code.
Creator is a four-character code. This format is compatible with all Mac OS and Mac OS X systems. If exactly one is specified, the script is written only to that fork. If both are specified, the script is written to both forks.