How to create your own .reg files
Applying .reg files is useful, but best of all, you could create your own .reg files. Here is how you can do it
Launch Regedit (Start, Run, Regedit)
Navigate to the area of the registry you are interested in.
Select File (menu), Export and save as .reg file.
Note: Export Range at the bottom of the diagram and choose: Selected Branch.
Once you have mastered the technique to create .reg files, keep a look out for repetitive tasks where you need the same settings on multiple servers. Enabling the Security Tab on Exchange Servers is a classic use for this .reg file technique.