If you are trying to activate a legacy 1.9 version, the only legitimate method is through the official EPLAN support channel, which requires a valid, registered serial number. Safe and Legal Alternatives
Which would you like?
Using a modified validation code or a "crack" to bypass software licensing might seem like an easy shortcut, but it carries hidden dangers.
Hardlock, HASP, or WibuKey USB keys had to be plugged into the machine.
Here’s the legitimate, step-by-step process for a paying customer or trial user, which stands in stark contrast to what "free validation code" generators offer: