I have updated to version 4.0.3 and now PrintFactory runs in demo mode

As of version 4.0.3, ProofMaster and PrintFactory v4 will no longer support hardware dongles. This means that the only activation method from then on will be activation on the hard drive (either through online or offline activation).

Please follow the instructions in the article "How to switch from a hardware dongle to a license file on my hard drive?"