64 bit secure xlspadlock executable created with 32 bit machine?

You mention in your product guide line that it is possible to create a 64 bit executable specifically for clients that are using a 64 bit version of Microsoft Office. On my computer - with a 32 bit hardware, 32 bit windows 8.1 and office version - this option is greyed out and not accessible. Can this be changed or does this mean that by definition in order to create a 64 bit excel executable protected file the hardware and operating system of the creating computer MUST be 64 bit ?. Please advise.

Yes, a 64-bit Windows version is required to build 64-bit EXE files. See http://www.xlspadlock.com/download#sysreq - system requirements.