If I remember, it is in:
HKCU\Software\Kixtart\...
The group membership is stored but not updated everytime (my experience). If I create a new group, wait the next day and logon again, it returns a 0 value with the INGROUP function. If I force the update at each logon, I can see (in the registry or by using the enumgroup function) that I'm member of the group. So I forced the update at each logon -> it works and it is not slower.
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SAVE THE WORLD - PROTECT THE PLANET
