OPENCPN V.4.0.0 STABLE FOR WINDOWS AND MAC OS
The program presented to your attention is free and open source software intended to be used for marine navigation. It is available on many operational systems. This particular pack includes separate installation files for most of MS Windows platforms, namely XP SP3/Vista/7/8, and for Mac OS X 10.7+. There is no need for any type of activation or registration. Nor you will have to send messages to activate it. The current stable version v.4.0.0 of this program was released this year.
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