Topic: About ACE MEGA CODECS PACK 6.03.0911

HOW DO I PLAY 3GP FILES using Media Player Classic  IN ACE MEGA CoDecS PACK. 6.03.0911(LATEST)
I also want to know how can I set FILE TYPE ASSOCIATIONS IN QUICK TIME PLAYER.

AFTER INSTALLING ACE MEGA   CoDecS  PACK." My computer says 'some Quick Time viewer applications do not appear to be properly installed.It is recommended that you reinstall Quick Time before setting your viewer associations'..I INSTALLED THRICE...BUT STILL IT DIDN'T WORKING........ PLEASE HELP ME......