have you updated the game to match the no-cd patch dflw.exe version to the last patch that was release for it?*
game version match the no-cd version so the matchup like! other wise you get a bug need the cd in the tray
1.) game patch link:
Update v1.00.42 install first a must!
2.) then replace the dflw.exe with the no-cd patch afterwards
c dive> pregrams > novalogic> delta force landwarrior (folder)
3.) then after right click-on dflw.exe select send to desktop shortcut then use the shortcut to play the game
you be good to go then
option only right click-on dflw shotcut select properties click-on that..then up top see compatibility...compatibility mod> select windows xp if your running a newer windows system