Abstract: An adapter that converts any normal chainsaw into a winching type towing machine for use by hunters who fell large game such as elk or deer, and must haul their fallen prey over rugged and remote terrain. The adapter replaces a chainsaw chain and guide bar, and bolts into the same position. The adapter comprises a drive chain and housing with a cable guide bar in the front and a tow bar in the rear. The housing contains a drive sprocket connected to a cable drum via a transmission that engages or disengages the drive train. An automatic braking system prevents the cable drum from paying out cable when under a load which may occur when the chainsaw motor is idling and a centrifugal clutch has disengaged the drive power. The adapter folds up into a compact unit capable of being transported anywhere. Additionally, the invention is not limited to use by hunters, but may be used whenever a motorized winching operation is called for.