You must avoid generic "cracked game" websites that pop up on the first page of Google. Many files labeled "PES 2004 full version.exe" contain trojans, adware, or keyloggers.
Over 50 international squads, including classics like Brazil, Argentina, and England.
If you are on the fence about downloading this title, consider the comparison:
PES 2004 for players, FIFA 2004 for presentation.