Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node

The presence of the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node indicates that the system is running a 64 bit version of Windows.

If a 32 bit application queries a registry key or value below HKEY_LOCAL_MACHINE\SOFTWARE\_company_, it is automagically routed to the respective key or value below HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\_company_.