Playing Devil's Advocate here, Faetyl....
I'm not sure about anyone else, but the Custom Preset .exe I have don't work. The icon for it (both in the thorui\#Custom Video Presets directory as well as the shortcut that was loaded into the start menu) look like the kind you get in a non responding browser window. And all it does for me when I try running it is open up a command/DOS prompt window (without the actual prompt to type at) and an underscore character jumps around randomly within the window until I try to close the window with the X in the top right corner. That then prompts a Non Responding error dialogue box to pop up.
I'm sure you're gonna ask or recommend doing so, so I'll say it right now.
Yes I have tried deleting the subfolder and re-running the AU to pull fresh copies of the files, but still no go.