Error: "The key could not be identified. The format of the key is invalid"

[Windows Vista/Seven]

!!! This is not an authorization problem, however the error message could let it understand; "key" must be understood as "registry key", not "eLicenser key" !!!

Just delete these 2 files:

PC:

  C:\ProgramData\Arturia\Analog Laboratory\standalone.prefs
  C:\ProgramData\Arturia\Analog Laboratory\plugin.prefs

Mac:
  Library\Arturia\Analog Laboratory\standalone.prefs
  Library\Arturia\Analog Laboratory\plugin.prefs

...then start again the Analog Laboratory in standalone mode, it should run seamlessly now.