Okay, I chose the standalone download.
First, I uninstalled through Impulse/GameStop, choosing NOT to delete everything. If you delete everything I think you might need to set up your fences from scratch. Not a good thing, if you have lots of fences like me.
I went to:
https://store.stardock.com/myaccount/products
My username and pass came up automatically. I signed in.
The website knew my code, so that I did not have to put in the registration code when installing. It was shown on the Stardock webpage.
Installed and everything okay. I did not loose my fences when FENCES came back up.So, I'm sorted. Thanks.
Oh, I did then uninstall Impulse/GameStop with Microsoft's ADD/UNINSTALL PROGRAMS. Although it mentioned FENCES being uninstalled, it did not remove FENCES I'd just installed by the standalone method.
Bookmarked Stardocks webpage.