I just installed EQ2 on a new windows 10 system. As always it requested permission to install the Direct X runtime. Imagine my surprise when it downloaded and installed a 2010 version. Could that be the problem behind all the mouse "upskirt" issues? DirectX 11.3 and 12 are included with Windows 10. Maybe that script needs to be removed from Win10 installation scripts.
EQ2 for years now has used DirectX 9.0c. The major versions of DirectX (9, 10, 11, 12) are not compatible with each other, so you need the proper one installed. It is possible to run multiple versions at once, as you've seen on your own system. It's better to keep the script than to make people install it on their own. Ideally, EQ2 would be updated to use a newer version of DirectX (11 or maybe even 12). I doubt Daybreak has the man-power to carry out that upgrade though, since it would be a near-complete rewrite of the graphics engine. As for the mouse issues, I can't say if DirectX is the cause. Regardless, I doubt they have enough devs to fix that one either.
