If you are looking for the decompiler itself, visit https://github.com/jindrapetrik/jpexs-decompiler
: WARNING - support of the decompiler is now VERY LIMITED. There are no active developers. This means waiting times in the issue tracker are very long and mostly depend on community. Sorry for the inconvenience.
Title: AS1/2/3 Script Importation not functioning.→AS3 Script Importation shown false "not supported" message