Mission planner software

May I know where I can download mission planner software with ground control station ?

Thanks a lot.

Regards,
Victor

@vic88my,
Try here: ardupilot.com/downloads/

This is not the latest MP, but a dialogue box will open asking you if you want to upgrade. MP 1.2.57 is the latest MP.
Regards,
TCIII

thanks, I am new to APM forum and ardupilot.