   Urgent !!! Can direct me how to install codec by program???
  Can anyone help me how to start to write an program perform installing codecs for video and audio to system.some codecs i am would like to install are: MPEG4, DivXI have another program, this allow user can choose one of codecs, was listed by the program, to make compressed video from raw video. The list are codecs that were installed to system.Here are my questions:1_ : Can i use some .ax or .dll files to install codec for MPEG and Divx?2_ : If 1_ can, what files should i have (where to download files) and can I use LoadLibrary and GetProcAddress function to register for these codecs?3_ : If 1_ cannot, so can you direct me the way how to install these codecs to system???I am very happy and thank for any your help.   
  I don't know about installing things through code, but could you just use an installation program like Inno Setup (which I believe is free)?  Just a thought.   