How to Play a MP4 on a Vista Media Center
- 1). Download and install a MP4 codec package. After installing the codec, open Windows Explorer. Go to the location of the MP4 file that you want to open in the Windows Vista Media Center.
- 2). Right-click the file and point to the option labeled "Open with" on the context menu. Select the "Choose default program" option on the submenu to access a list of programs.
- 3). Click on "Windows Media Center" to select it from the list of programs.
- 4). Play the MP4 file on the Windows Vista Media Center by clicking "OK."