> You can't address more than 2GB of memory in 32 bit code.

This is generally not true. A Win32 executable with the IMAGE_FILE_LARGE_ADDRESS_AWARE option set can address more, up to 4 GiB in 64-bit Windows versions. [1].

Cheers,

V.

[1] https://msdn.microsoft.com/en-us/library/aa366778.aspx