What I was meant is that if the computer has MS office2007 32 bit installed, you cannot install 64-bit MS Access Engine. With MS office 2010 or 2013 32-bit installed, yes, you can have 64-bit MS Access Engine installed and it is rather trick to do it with MS Office 2010, though. The reason to point this out is that most MS Office installation is 32-bit and rarely MS Office 64-bit is used.