Exe. is it the main part of a file??
 

When they say to replace your program exe. with no cd exe. do they mean the one with the name of the program???

A exe it a type of file..... in your case it is what all the game shortcuts and shit goto to bring the game together......to fix your problem reinstall it......you probley tride to crack it right??

ok heres an english version:

The game.exe (for example hitman.exe) is the file that launches the game. When you click hitman.exe the game runs. When you click it, it generally #####s for certain things on the cd (copy protection) then allows it to work if everything is ok. If you back up the game then generally (unless you use clone cd or whatever) you get an error message.
This is where the people here come in. They provide a "fixed.exe" or "no cd.exe" which would be the same name as the original game.exe (hitman for example) so you just simply replace it.

Fixed.exe = disable copy protection.
NOCD.exe = allows you to run game from hard disc with no need for cd in drive.
Hope this helps you to understand a little better.
Email me if not. :0)