You are being instructed to edit the registry.
So it'd be START / RUN / type REGEDIT
But be very, very careful !!!!!! You should backup the registry before making any changes. Serious damage can be done to your system!
Read these pages first:
Description of the Microsoft Windows registry
How to back up, edit, and restore the registry in Windows XP and Windows Server 2003I have found that some windows automatic updates (especially service pack 2) can cause program and hardware problems due to registry conflicts. Good luck
