can anyone help me in the problem of licence of HFSS

- In fact I can't do the simulation in the regime "engeimode" for drawing the comportment of band interdit photoniq (BIP); while the other simulation on the regime "drivenmode" is ok, for the simulation of microstrip for exp...The warning is "..have no licence in this regime.."
- I think that, is it possible, this sitution? coz if we can use a software that mean we can use all the components in it.
So have anybody can help? I appreciate it .

BOY

so it is really a prob of the accept copyright law, i have add S ; thanks for del this !