fcsh can compile actionscript 3 and mxml files. included are fcshserv.sh and fcshcmp.sh. fcshserv.sh should be launched manually before you edit .as or .mxml files. then, you can execute fcshcmp.sh from vim to compile and optionally run .swf file. requirements: - fcsh ( http://labs.adobe.com/wiki/index.php/Flex_Compiler_Shell ) - bash Tested only on GNU/Linux. Might work on *nix or cygwin. 1) tar