How to Copy IE7 Search Providers List

I have found the following convenient yet safe way to copy IE7 search providers list from one computer A to another computer B.
(1) On computer A, add all desired search providers to IE7.
(2) On computer A, use regedit to find and export the following key to a .reg file: HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes.
(3) Copy that .reg file from computer A to computer B.
(4) On computer B, run (double-click) that .reg file to import the corresponding registry key.

References
[1] Add Search Providers to Internet Explorer 7
[2] How to create custom .adm or .admx files to add search providers to the toolbar search box in Internet Explorer 7