I want to change the phone button in today.
With Total Commander i make; HKEY_CURRENT_USER\SOFTWARE\Microsoft\Today\Keys\112 (it's a copy from 113) and change key; Open (addrbook.Ink) and Default (Contacten).
The phone button is now changed in Contacten button, but it doesn't work; "the file 'adrrsbook' cannot be opened. either it is not signed with a trusted certificate, or one of its components cannot be found. If the problem persists, try reinstalling or restoring this file."
I've tried various settings
change Keys\113 works fine