Yes, I know. The OneDay key doesn't appear to be changeable - to lift the restriction.
The software only runs for 24 hours.
I have found that by editing the Installation date
[HKEY_CLASSES_ROOT\CLSID\{B7319A93-DF12-494A-9F75-452C6B4CEFFF}]
"InstallDate"="25/05/2007 2:29:03 PM"
to be inside the past 24 hours will permit the software to again run in registered mode.
Naturally this is only a workaround - a registration key that lasts longer than 24 hours is really what is needed.
Hopefully a Aimersoft have innocently misunderstood what was expected with a 24 hour giveaway - because otherwise doing this deliberately will create no goodwill towards their company and products. Everyone should at least give them the benefit of the doubt.