Everytime i open a ai file it opens in 32bit
If i drag it with shift key held to the bottom bar on my windows and let it go over the ai 64 bit program icon it is fine
but i wouldl ike it to open in 64bit if i double click it or select open with
Windows 7 Pro
You need to manualyl edit your file associations. The simplest way would be to delete all existing ones for AI files, then create a custom one using Righ-click --> Open with... and selecting teh 64bit version explicitly.
The easiest way is to right click any .ai file and select "Open With". In that dialog box, navigate to location where your AI CS6 (64 bit) exe is located (By default, AI 64 bit installs at "C:\Program Files\Adobe\Adobe Illustrator CS6 (64 bit)\". Select the application and check "Always Use the selected program to open this kind of file". Click "OK". From now onwards, all your .ai files would open in AI CS6 64 bit by default.