32 or 64-bit Kernel Startup Mode Selector

32 or 64-bit Kernel Startup Mode Selector Publisher's Description:
MacOS X 10.6 Snow Leopard is 64-bit - or is it?

Well, actually MacOS X 10.6 Snow Leopard is both 32-bit and 64-bit, and what that means for you depends on both your hardware and your settings.

I put up an accompanying website which should answer most of your questions at

http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html

What does this app do?

* it shows whether you have a 32-bit or a 64-bit processor
* it shows whether you have a 32-bit or a 64-bit EFI
* it shows whether the MacOS X Kernel is set to boot in 32-bit or in 64-bit mode
* it shows whether the MacOS X Kernel is running in 32-bit or in 64-bit mode
* it shows whether Apple officially supports booting a 64-bit kernel on your Mac
* it allows you to select whether you want to start the MacOS X Kernel in 32-bit or in 64-bit mode (the setting might be ignored on MacBooks, depending on how Apple implements the restriction)
* accompanying webpage explains what the whole commotion about 32-bit and 64-bit in MacOS X Snow Leopard is about

Requirements:

To check your configuration:

* Intel Mac
* MacOS X 10.4 Tiger or higher

To set the kernel's startup mode:

* Intel Mac
* MacOS X 10.6 Snow Leopard or higher
* Admin rights (as a system file needs changing)