Installed Tabbles (found I had to use Internet access to download required Microsoft components), disconnected from Internet, started program and entered activation key, received ‘Success’ screen, but on leaving it received a screen that said Internet connection had failed, I had reverted to the free version, and to email some gibberish to Tabbles to get activated.
As it was much easier just to reconnect I did so, but all subsequent attempts to activate (using the same key and exiting Tabbles after each attempt) received the ‘Success’ screen again followed by a screen that said the key had expired (I did check that the SoS offer was still active) and that the version had reverted to the free one.
You might want to rethink your registration logic in this area, but meanwhile could you advise me how to activate this?