You can install DraftSight on any machine that meets the installation requirements.

Each software license enables one machine to be active at a time while the license is valid. To use DraftSight on more than one machine you should purchase and activate an additional license for each machine. You can transfer one license from one machine to another, but you will need to deactivate the license on the current machine before attempting to reactivate on a new machine and there are limits to how often you can do this.