On occasions you may find that an old game runs too fast on your PC and you are unable to play the game because of that. This usually occurs when running older DOS games which where created on a PC at very low CPU rate.

Turbo is a tiny (only about 50 KB) freeware utility for Windows that slows down the CPU speed on your computer to emulate a lower CPU speed. As a warning flag, once you have activated Turbo with a reduced CPU speed, all programs running will be slowed down accordingly and not only the game that you try to run! Even games running from DOS shell (DOS mode) will be slowed down. You can at any time reset the CPU speed within Turbo to normal 100%.

As a final note, there is no guarantee that Turbo will make a game playable just because the effective CPU speed on your computer is reduced. Some old games were not designed with CPU timing loops, and those games will instead produce "choppy" graphics. It's a matter of trial and error in regards to how effective Turbo will be for a certain game.

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