"It's quite remarkable. It's really a good simulation of flying the actual aircraft with the exception of the smells and the feels."
You can take on computer generated enemy planes or go head to head with opponents over the Internet at Microsoft's zone.com. You can fly eight different American, German or British aircraft. Lawrence, who is 76, says he's been having fun with the game... and...
"I talk to my grandson and other kids and they say, Grandpa, how was it like to fly World War II? With this, my grandson, I can actually sit down with him and put him through and he can get the feel. He can actually handle a computer better than I can because he doesn't have arthritis in his fingers, but it's just that sensational. It's really great."
He wishes it had been around to help train pilots back then.