Well, you have your answer in your question - 'some games' . Your game may work if its well [possibly] before 2010 and it has NO LIC.DAT structure.
You can check the structure of few games here - http://jonnysp.bplaced.net/ before trying it. Of course, it still might not work. You're welcome to try out any game you wish and report back.
You can check the structure of few games here - http://jonnysp.bplaced.net/ before trying it. Of course, it still might not work. You're welcome to try out any game you wish and report back.