Meaning? The standard package comes with everything you need to install on both platforms and the serial is cross-platform, so if you just need 2 installs/ activations, all the bases are already covered. If you need more, you need to buy more licenses...
Not so fast. Sadly the license does not allow this
2.1.5 Dual Boot Platform. The Software is licensed for use on a specific operating system platform.
Customer must purchase a separate license for use of the Software on each operating system platform.
By way of example, if Customer desires to install the Software on both the Mac OS and Windows
operating system platforms on a device that runs both of those platforms (i.e., a dual boot machine),
then Customer must first obtain two separate licenses for the Software. This is true even if two versions
of the Software, each designed for a different operating system platform, are delivered to Customer on
the same media.