AutoCAD Express Tools

[#1]

Where in the program, any and all platforms, will the program tell me the bit version (32bit, 64bit) that is installed?

[#2]

These may help.

http://cadtips.cadalyst.com/lisp-code-modules/detect-autocad-type

http://blog.jtbworld.com/2007/04/determine-programmatically-if-autocad.html