How to install the 64-bit version of MapInfo Pro alongside the 32-bit version using the same serial number

The license for v15.2 x64-bit is designed so that users can install and activate it alongside their existing x32-bit installation and vice versa. If both x32-bit and x64-bit editions are deployed on the same machine, when activating the license, it will count as a single activation. 
UPDATED:  April 12, 2017