Hi TILOTOHA and welcome to our community
I'm guessing here that your use of terminology is just a bit
off and you are referring to a Flash file generically as a "video
encoder" file. Or is this a Flash created file that actually does
something to encode videos when it is run?
My guess is the former. So what are you using to create this
file? It's not uncommon to see different applications create
multiple files that must be used in order to make the Flash
animation work. So I'm guessing that you are simply missing some of
the components that are needed.
Cheers... Rick