WHERE CAN I FIND A SUPER-TOOL ??

DEAR LADIES AND GENTLEMEN ,

I URGENTLY NEED YOUR HELP !!!
I KINDLY ASK YOU TO TELL ME WHERE CAN I FIND
A POWERFULL TOOL TO ANALYZE AN EXECUTABLE PROGRAM AND TO DECOMPILE IN C/C++ LANGUAGE THIS .EXE PROGRAM .
THE SOURCES OF SOME PROGRAMS HAVE BEEN LOST
FOR EVER AND NOW ONE OF THESE PROGRAMS MUST
BE MODIFIED !
I ALSO WOULD LIKE TO CONTACT A “GURU” IN
BORLAND C LANGUAGE . PLEASE ,HELP ME .
WHO WANTS TO DO IT FOR ME ???
THANK YOU VERY MUCH IN ADVANCE ….

KIND REGARDS ,
EMIL