Editing the registry can be a time consuming process. Sometimes updates or cleanups are easier to perform via a registry script (.reg). A registry script can be created using note pad. For a registry script to execute properly the first line needs to be either REGEDIT4 (Windows NT4, Windows 2000, Windows XP) or Windows Registry Editor Version 5.00 (Windows 2K and Windows XP).
So a script would look like:
REGEDIT4
[HKEY_CURRENT_USER\SomeKey]
"SomeValue" = "ON"