I just found out earlier today how to play my Open for Business game without the cd, so I thought I'd stop by and pass the info on to you people.
Here's what worked for me, and I have been playing the game cd-free for a couple hours now with no problem...if you follow my directions properly, there is no reason it wont work for you as well.
1. Get the Game Jackal Program(the free download)
2. Get the safedisc 4 hider Program
3. Follow the directions in the Game Jackal program to create a profile for the .exe file of the Open for Business game. While creating the profile, if you are using a mdf or mds file, direct the game jackal program to the virtual disk location that you use to mount your images on, then when it finally says to put the cd in, mount the image at that time. Once finished, do not activate the profile yet, but leave the game jackal program open.
4. Start safe disc 4 hider program
5. Click hide on the safe disc 4 hider program
6. Activate the profile on the Game Jackal Program
7. The game should play now
I hope this works for you guys, but let me know if you have any problems.