I am looking for a software program that will take a snapshot of the registry changes in Windows XP, (Free if the is a good one). There use to be one for NT called Sysdiff that would even create a file with the difference in it. I have tried to run it on XP but get an error message that an entry point could not be located in a file. What I need to do is take one computer, make the changes say to the DNS settings, take a snapshot of the changes, then run a script of the changes on other computers. Does anyone know of an easy to use program for this?