Technically you're missing
Set Boolean [ThrottleBacklight] to True
However, reading the source code, you don't need to pass any parameters you to do basic communication.
The last commit was 2016-05-22, and the build is from 2016-04-04, but I assume the earlier build was also supposed to be functional (I don't know which build Eggies downloaded).
Recompiling the latest build (combined with the latest release of HIDSharp) loads and invokes as it should, so you could try that.
Unfortunately Tenebrous does not state which license he's distributing this under, so I can't upload anything myself.
That said, I should point out HIDSharp (which is distributed with the download, though not the source code) is under an Apache license, which stipulates the author's copyright notice must always be included (and it isn't).