I am using amplitube3 and guitar rig 4 and some other programs and just switched to using 64 bit because of memory issues. How can I confirm if a plug in is in 32 or 64 bit? I know one of my plug ins is 32 bit because the 32 bit addition is automatically opening.
Assuming you are using Logic 9.1.x, start logic in 64 bit mode, then load the plugin you wish to test. If it loads directly in Logic, it is 64 bit. If however, it runs in the 32 bit Audio Unit Bridge, it is 32 bit. Furthermore, running Logic in 64 bit mode, if you launch the AU manager, it will show only 64 bit AUs.