Hi davey, I guess you didn't read my post.
Post #2
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It is possible that the backup was not saved as a .reg file. Try renaming the file and add .reg at the end. Then right click on the file and see if the merge option is there. If not you may have a file association problem. We will need more info like what operating system you are using.
ck1754 found something interesting at the page he linked to that may be a solution to some when the .reg file opens in notepad.
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If you'd rather make the double click action work to actually directly install the ".reg" file:
Right click on the ".reg" file in Windows Explorer
Click on Open With...
Click on Registry Editor, if it's in the list, or use the Browse button to locate regedit.exe (typically in C:\Windows)
Make sure that Always use the selected program to open this kind of file is checked
Click OK
Now, if you double click on your ".reg" file, you'll be prompted to confirm that you want to add the information in it into the registry. Click OK on that, and you're done.
Jamin4u