I normally just export the entire SolidWorks 20XX key from the registry after getting the settings the way I want them; have not had any problems with the computers it is copied to not being the same model.
But to answer your question. Below is a screen shot of the output using copy setting wizard (left) and regedit export (right). Except for the heading, they look the same to me. For a test you could change the header on the copy setting wizard file to match the header from the regedit file (i.e. delete the first two rows in the SW file and replace it with the first row from the regedit file), then run it using regedit.exe After that, open SW and see what happens. I would recommend exporting the SolidWorks 20XX key before doing this so you can restore it if things go awry.
Usually just double clicking on the sldreg file will install the reg keys.
This will work from the command prompt regedit.exe /s <filename>
Be sure your IT dept hasn't disabled being able to run reg edit files. Many do for security reasons.