You can install WinBidPro on as many computers as you like, but each license (attached to your email address) can only be used on one computer at a time.
Head to the WinBidPro page under the "Download" tab in the menu at the top of the website. Download and install WinBidPro and login to the program with your email address and password.
In WinBidPro v16 all of your vendors and jobs are on our web server, so all of your company's work will be there on this new computer.