Agreed, MTASC has been a huge time saver for me over the last few years, I can't recommend it enough for AS2 development. Another free AS IDE: http://www.flash

Agreed, MTASC has been a huge time saver for me over the last few years, I can't recommend it enough for AS2 development. Another free AS IDE: http://www.flashdevelop.org http://www.flashdevelop.org I've not used it a great deal (I use FDT with Eclipse), but I thought it was worth mentioning as it does support AS3 too. Windows only though.