AS2 passing variables from external swfs to main and vice versa

Good Day! :slight_smile:

I wonder if it is possible to pass values from external .swf files to the main projector (.exe) file.?
I would also like to know how a button of an external swf file can control the playhead of the main .exe file.

for example,

I have this map of tasks. and each map have these houses which when clicked will take you to a certain task(external swf). and when accomplished should have a button to take you back to the map(main swf), and also the button to send a value to the main swf that the task is accomplished.

I hope you can help me…

thank you very much in advance :)…