Delete group everyone

Hi experts and others,

In the forum I read a lot about seeiing LDAP groups in the portal. But I read a sap note 661543, that portal crashes, because in the ldap, a group everyone exist same as the built in group of the portal.

Solution is: delete the group everyone from the portal.

But in the note they mention a file to initialpermissions.xml.bak, but the file does not exist on my portalserver.

So my questions is, Is it necessary to delete the group everyone?

If yes, Is it normal that initialpermissions.xml.bak is not on my server.

I use EP6