I think there is a problem with your flash player. A flash projector file is an exported file from Macromedia Flash.
Try (re)downloading flash player from www.macromedia.com (it's completely free).
There are several games that I used to be able to play and now when I try to play them I get the error "Macromedia Projector has encountered a problem and needs to close.
We are sorry for the inconvenience." I am running Windows XP Home Edition on a fairly new emachine. Everything else works perfectly - why do I keep getting this error???