First post, by RayDream
A newbie in programming here,
I had encountered this grp5 illegal call 7 problem as I tried to run an old game developed by taiwanese company 1994 (the game is not tested by dosbox).
The game is called DIF2, dosbox shows grp5 illegal call 7 while vdmsound is able to run it, however the speed will be messed up, playing normal speed in title screen, but a reduced speed in gameplay. I had tried SPEEDSET.exe (a speedup program), however due to the badly programming in the game, it slowed again after some pt in the game.
The game can be downloaded here:
link deleted by MiniMax
Please help!