To replace/delete files after rebooting you need to create a file named wininit.ini in the Windows directory Then enter the following for example: [Rename] c:\windows\system\myoldsys.dll=c:\mynewsys.dll to delete the file you would enter: NUL=c:\windows\system\myoldsys.dll So we see that the format is "newname=oldname" You need to use always the shortfilename for this to work longfilenames do not work at all.

How about if you give it a shot (you're the one being paid, right?) and then ask specific questions about what you're struggling with rather than asking for a "fully appropriate and satisfied" answer.