The Royal Australian Navy have been doing it for years! since 91 in fact when they embarked a Squirrel for Gulf War 1 on a warship. Doesn't really count in this context, but interesting flying. Used to do live transfers as well. If this link to the navy.gov.au photo library works.....
http://images.navy.gov.au/fotoweb/ar...9_091.jpg.info
Just remembered- the Squirrels in Australia were originally bought for SAR duties with the RAAF before they divested themselves of Rotary. Wouldn't have liked to be a heavy Mirage pilot being winched out of the drink off Darwin in the summer!!!