when are external files included?

[omniscient232]

when you have an external class .as file, like this:
package{
class
}
when will it be included in your .fla file? you don't have to include it urself, so how does flash know it has to include that file?
i dont understand in general the act of including .as files.

[MyFriendIsATaco]

If it's sitting in your classpath, it'll be available for use, but you should general import any and all classes you are going to use.

[omniscient232]

i dont understand what u mean. what is a classpath? what is general import?