yosuke’s blog » Blog Archive » HTTPPostBinary class connects your flash program to general webserviceAlthough there are some Flash-to-WebServer communication protocol (such as Flash Remoting) which supports data transfer in binary format, we still need standard HTTP based protocol in order to communicate with existing web services. HTTPPostBinary class is an actionscript3 implementation of HTTP “multipart/form-data” protocol which supports binary data posting. You can download the code from her
