In Desperate need of help with Flex 2 SDK

Can anybody here tell me how to compile actionscript with the mxmlc file?

everytime i doubleclick the file to run it, a prompt will show up for a split second then disappear.

Further more, can anybody define for me what compiling actually is?

i’m pretty new to this process as i’m sure you can tell. but anywho…

i’m hoping someone here can provide me with some solid answers.