This is a video captured from MS Flight Simulator 9.

The helicopter is Eurocopter EC 155 which is currently used by Government Flying Service (GFS) in Hong Kong.

Some add-on are also used for this video :
Dauphin Helicopter (GFS) by Antti Pankkonen
Flight Soft Hong Kong Special Edition
USS Mispillion AO-105 by Earl Watkins
Saitek AV8R-01 (Joystick)

The details of EC-155 are :
Aircraft Registration : B-HRU, B-HRV, B-HRW, B-HRY
Type : Medium utility transport helicopter
Power Plant : 2 Turbomeca Arriel 2C2 Turboshaft engines
Engine Output : 789 kw / engine
Maximum All-Up Weight: 4850 kg
Maximum / Cruise Speed: 175 kts / 145 kts
Fuel Capacity : 1011 kg Jet A-1
Endurance: 3 hrs
Radius of Action: 140 nm
Crew: 1 or 2 Pilots + 1 or 2 Aircrewman Officers
Seating Capacity : 2 pilots + 13 crew / passengers
Certified Operations : VFR* and IFR* (less info)