Unable to install PhysX 3.3.3 for Maya LT

I am unable to install the PhysX 3.3.3 DCC plugin for Maya LT 2016.

When I run NVIDIA_PhysX_For_Autodesk_Maya_LT_2016_64bit_3.3.20203.00132.msi, I get the following error:

“PhysX for Autodesk Maya LT 2016 64bit is not installed. Setup requires the version of Autodesk Maya LT of matching version and bits to be installed prior to installation of this product. Setup will now exit.”

I’ve installed a trial version of the latest Maya LT 2016 (the shortcut is called “Maya LT 2016 Extension 3”), which runs fine, so it seems the installer can’t identify Maya LT 2016 correctly.

Any help would be appreciated.
Many thanks in advance.