help

[gh0sth@cker]

Unsure about your reg problem as you haven't given much details - wat problem you have etc

A fixed exe is an unprotected version of the original exe - that is it has the copy protection stripped from it so you can play the game using a non-perfect backup of the game
A no-cd crack is a modified version of the original exe that gets rid of all the cd-checks and copy protection so you can play the game without the cd.
Sometimes a fixed exe is also a no-cd crack because a lot of games only check the cd for the sole purpose of copy protection - so without the copy protection check, the cd isn't needed.