The present invention is a method of forming a compressed product. 510, and a transfer magnetic field applied to the surface with the earlier magnetic transfer and a transfer magnetic field on the surface of the slave medium with the subsequent magnetic transfer are in a relation of: 0. A method of control obtains, based on measurement sample definition, a first process variable of a system under control, determines a residual error using the first process variable and a first set point, controls the system using the residual error, obtains, based on the same sample definition, a second process variable, and adjusts the second process variable using the residual error. When the subscriber is in a non-LDAP region, The password proceeds trough a proxy server to a regional RADIUS server which connects to a non-LDAP server.