Why do some applescripts want to open in classic mode?

Here is a random question…occasionally I create an applescript and when I open it at another location, it wants to launch Classic mode. Does anyone know what causes that and is there a way to prevent that from happening.

It sounds like those machines have the OS9 script editor as the default application used to open scripts on those machines. The way to combat that is to get info on a script and in the “open with” section choose OSX’s script editor, then press “change all”. That should fix it for that machine.