Focus on Longbow 2, the other games are even older, and so are offering greater potential for conflicting with today's PCs and OS.
the place to ask for the complete list of steps how to get it running is the helicopter fourm at
www.simHQ.com . search there, or ask them. LB2 can be made running under XP - many accieved that, and I managed to get that done, too - so don't give up.
You'll very probably need a glide wrapper. explanation will be given in one of the solution lists you can find via simHQ.