how can i decompile exe file created in Microsoft Visual C++ 6.0 [Ov

THANKS FOR REPLY DARKER BUT MY PROBLEM IS NOT SOLVE
BECAUSE I GIVE YOU LINK ONE SOFTWARE
IN THIS SOFTWARE OLD VERSION ALL DATA SHOWING IN ANY HEX EDITOR BUT THIS SOFTWARE NEW VERSION ALL DATA IN ENCRYPED (ALL DATA SHOWING IN "EEEEEEEEEEEE" BY ANY HEX EDITOR I CHANGE ONE VALUE THAN SAVE SOFTWARE BUT SOFTWARE NOT RUN ANOTHER THAN SAY INVALID EXECUTABLE FILE BUT IN OLD VERSION AFTER CHANGING WORK PROPERLY MY PROBLEM IS HOW CAN I DECRYPT THIS ALL VALUE AND AFTER CHANGING NEW SOFTWARE RUN PROPERLY.
LINKS:-
OLD VERSION:-http://www.4shared.com/file/254743807/2cfb5f6c/software_old_ver.html
LINKS:-
NEW VERSION:-http://www.4shared.com/file/254731367/6edd0390/software_new_ver.html

PLEASE CHECK
THANKS IN ADVANCE.
AND
THIS FILE CREATED IN Microsoft Visual C++ 6.0 [Overlay] I CHECK USING PEiD TOOL.