[MattD]

Yes, you can transfer the license from one computer to another.

Install EasyC on the laptop. When you run it, there should be a registration box that shows a "PC Specific Code" -- make note of it. On the PC which you already have the licensed copy of EasyC installed, go to Help -> Registration... in the EasyC window to open the registration dialog. Choose "Manual Transfer" and enter the exact PC code from the destination computer. You will then receive an unlock code to enter on the laptop, and the license on the source PC will be dropped.

I believe that this process requires an active Internet connection for both computers.