Here are some older tools that will remove the copy protection from 
several DOS computer applications and games.  Each one has a different 
list of programs that they know how to crack.  

These are legitimate programs to own and use.  They are especially 
useful now, because many companies are releasing their older DOS games 
as freeware, but not bothering to first disable the copy protection 
(making the freeware releases totally unusable until cracked). 


Remember: 
You have a legal right to backup and/or modify your personal software!