@Ze-Doctor Unlikely they will answer you.

Going to suggest something that may or may not work but is worth a try.
From your video, it doesn't seem you have scripthook 5 installed? If that's the case, install it and dinput8.dll in the root folder.
dinput8.dll is the asi loader, the same one as the one packaged with OpenIV. Once installed, cross your fingers and see if the Asi Manager will open.
Worst case, we can upload OpenIV.asi and you can install it in your root folder.
Doesn't explain the read only issue...but again, worth a try.

Also, make sure GTA V isn't running while you install OpenIV. If the game is running files will be locked and that could be the issue. Once properly installed you can keep OpenIV open, but just to inspect files. That might be the problem as well? Game open?

N.B. while scripthook 5 isn't required for OpenIV, it will be required for modding. However nothing happens without dinput8.dll and I'm hoping that somehow it was an installation gone bad.

@Pentref said in Is it possible to enter online with an edited "visualsettings.dat" file?:

I have a bypass for Online

what is a bypass for Online. I'm just curious. Is that to cheat?

You haven't specified what message you got, just that you can't enter online. Error message?
I think most people here use mod folders and while Rockstar won't ban you for SP mods you can't even go online with mods.
If you're using some "bypass" mod to cheat online or don't realize all you need to do is rename dinput8.dll to play online, then you will indeed have problems if they think you're cheating (no ban, just no entry) or that your files are corrupt.