Business multi-user versions are not floating. The client installation is copy protected with activation. Further, the maximum number of users is determined by the SimaPro database server. If you need to move a SimaPro client from one computer to another, please refer to the FAQ 'How can I reinstall SimaPro'?
Only the Classroom license is a floating license, i.e. the maximum numbers of users is determined by the SimaPro database server. You can install the client as often as you want; however, we recommend installing the client on a server so that maintenance is simplified.