|If you did a clean install of Windows 7 64 bit you'll have to reinstall all software.|
If you did an upgrade from 32 bit to 64 bit, all your installed software should work.
PS: Proper capitalization, grammar, punctuation, and spelling when typing is still the norm. Please try to use it in the future as it makes it ever so much easier to read your questions. You're not texting on a cell phone here.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.