[Big Country]

I would not replace those files without making a back up of them first. I rename all files that I am going to replace. For instance I rename them to LAUNCHEAW.EXE.OLD first and then put the new files in that same directory. It might not be letting you replace the files as they may be in use somehow. If you try to rename the files and they are in use it will let you know. Just an idea. Don't know why they would be in use if the game is not running but who knows. Also maybe try to extract them to a diff folder and then copy over from there.