Registration Instructions: Once installed the prog go to the following directory and copy-paste there the DVDXPlayer.dll The directory is: C:\Documents and Settings\All Users\Application Data\DVD X Studios\DVD X Player 5.2 Professional Note:In case you cannot see the "Application Data" folder when you enter to the "All Users" folder, go up in the Tools menu, select "folder options", then "view" and then select the "View hidden files and folders".