Quicktime Video for Windows Install Instructions Copy all the files except for "qtw.ini" to the Windows System directory (c:\windows\system). Copy "qtw.ini" to the Windows directory (c:\windows). Modify c:\windows\win.ini by adding mov=mplayer.exe /play ^.mov to the stanza [extensions] (create stanza if necessary). also add mov=QTWVideo to the stanza [mci extensions] (create stanza if necessary). Next, modify c:\windows\system.ini by adding QTWViedo=mciqtw to the stanza [mci] (create stanza if necessary). Reboot.