3D Vision (I know it's officially discontinued but trust me, it's still usable with a few hacks) requires setting StereoProfile to Yes to enable stereoscopic 3D in some games/apps, like this in 2.3.0.13:
But the flag is gone in the latest version at the moment (2.4.0.3)
ThreeDeeJay
commented
1 year ago 
3D Vision (I know it's officially discontinued but trust me, it's still usable with a few hacks) requires setting
StereoProfiletoYesto enable stereoscopic 3D in some games/apps, like this in 2.3.0.13:But the flag is gone in the latest version at the moment (2.4.0.3)
If the 3D Vision flags have been accidentally removed, they're documented here: https://wiki.bo3b.net/index.php?title=Driver_Profile_Settings#StereoProfile_.28AKA_The_Mystery_Stereo_Setting.29_0x701EB457