Hi,
for all
VB related qstns, go to
http://www.pscode.com. U can get almost all
VB projects here.
To get physical addres of HDD, try to search pscode using words 'Demo', 'shareware' , 'evalution', coz once I downloaded a code from pscode that was used to create shareware copies of projects. That code used to store address and serial no of HDD to registry. Maybe that is what u need.