Tiki's method here..
https://www.feldoncentral.com/forums...8&postcount=13
worked fine for me.
I registered to comment on how to copy the PassCode from one key to another for readers who might not know.
You should export each registry to a .reg file, which is simple text. Then copy the PassCode value from the .reg file for this key:
HKEY_CURRENT_USER\Software\SereneScreen\MarineAqua rium3
to the .reg file for this one:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\SereneScre en\MarineAquarium3
using a simple text editor like Notepad.
"Executing" the second file replaces the corresponding key, of course.