As from Duende Native v4.0.6 software there is a choice of 32 and 64-bit installers for both Mac OS and windows. Click on the Download label within the appropriate download box, and the download will start automatically. It is important that users install the correct software version – please refer to your computer's User Guide to establish which of the following host/OS permutations applies to you:
Protools - Always use the 32-bit installer
Other DAWs - match the installer to the bit depth that the DAW is currently running in.
Protools - Always use the 32-bit installer.
32-bit OS, 32-bit Host: 32-bit installer required (for safety reasons, the 64-bit installer will not run on a 32-bit OS);
64-bit OS, 32-bit Host: 32-bit installer required (the installer detects that Windows is 64-bit and installs 64-bit CodeMeter, but installs 32-bit plug-ins)
64-bit OS, 64-bit Host: 64-bit installer required;
64-bit OS, separate 32-bit and 64-bit Hosts: both installers required!