ffmpeg.exe working on local windows system. But does not work on online linux server

I have downloaded ffmpeg.exe file wit开发者_运维百科h php using exec function. It works fine on local system of windows with xamppp and converts videos to flv format. But now I have uploaded files on server and it does not work at all and that server is linux server. Can any body help me whats wrong or how can i solve this issue?

exe files are not linux executables.. just call ffmpeg program on linux. (check if its installed)