look here
http://www.softpile.com/Games/Action...643_index.html
We are sorry to tell you that the distribution of the Hard Truck demo has been discontinued.
You can look for the demo at
www.valusoft.com or can visit our Hard Truck 2 page.
from
http://www.softlab-nsk.com/Demo/htdemodiscontinued.html
they should reinstate this demo now that the games have a larger group and have gained serious popularity .
not sure I understand why . but they all run fine on my XP with compatiablity mode .
"GOOGLE is your Friend"