VSTLive 3 Licensing

I have a valid license for VSTLive 3
Is it possible to activate it on 3 computers at the same time?

My scenery is like this:
1st my iMac workstation at home where I create and test my VL projects.
2nd my MacBook which I use normally on stage to run my VL projects.
And, this is my question:
3rd a Windows Notebook as a spare in case the main MacBook on stage fails.

The 2nd and the 3rd computer never run VL at the same time.

Yes, 3 computers are ok.