Flasm 1.62

Flasm is a free command line assembler/disassembler of Flash ActionScript bytecode. It lets you make changes to any SWF. Flasm fully supports SWFs produced by Macromedia Flash 8 and earlier Flash versions.
Flasm was designed to disassemble your entire SWF including all the timelines and events.
Looking at disassembly, you learn how the Flash compiler works, which improves your ActionScript skills. You can also do some optimizations on the disassembled code by hand or adjust the code as you wish.
Flasm then applies your changes to the original SWF, replacing original actions. Its also possible to embed Flasm actions in your ActionScript, making optimizing of large projects more comfortable.
Flasm is not a decompiler. What you get is the human readable representation of SWF bytecodes, not ActionScript source. If youre looking for a decompiler, Flare may suit your needs. However, Flare cant alter the SWF.

Enhancements:
- Bug fixes, thanks to Petr Ovtchenkov et al.