How i can protect my swf file >>>>

hello >

i want to know how i can protect my swf file , to be unable to convert it to fla file … please please please , very necessary …

i cant,t put any design into the internet , because any one can convert it to fla file , and show all action and object in file … or convert the designer name “” put his name “”

please , if any one know how i can … tell me

thnx