This paper presents how it is possible to increase the Genetic Programming (GP) Computing
Power (CP) for free, via Volunteer Computing (VC), using the well known framework BOINC plus a
new ``virtualization'' layer which adds all the benefits from the virtualization paradigm. Two
different experiments, employing a standard GP tool and a complex GP system, are performed --with
distributed PCs over several cities-- to show the free achieved CP by means of VC, without the
necessity of modifying or adapting the original GP source code. The methodology can be easily
extended to Evolutionary Algorithms (EAs).