The Dolphin Keyboard installer included with SuperNova takes over the entry in the following location to allow users to start Supernova using a dedicated key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\18
You wish to change the application launched by the Mail key (for example having it open Outlook instead of Windows Mail). This procedure can also be applied for the other keys if you have a desktop icon available for the desired application.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\15
The Dolphin Keyboard installer included with SuperNova takes over the entry in the following location to allow users to start Supernova using a dedicated key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\18