@Maceika That thread is a year old. The file that comes with scripthook is the one to use. Not that is seems to matter but SH gets updated and OpenIV doesn't - but it doesn't seem dinput8.dll gets updated. The Microsoft version gets updated however.
The OP was confused, wrongly thinking there were two versions, because OpenIV calls it the Asi Loader and SH has it as dinput8.dll,(aka Asi Loader). Either one however can disable your mods to play online - why? Because it's exactly the same file. Unless he was using a super old version of OpenIV and a new version of SH.
If you delete dinput8.dll manually and then install it as Asi Loader from OpenIV it will be timestamped with the current date, giving you the impression of a newer file. It's not, it's the 2015 version.
What I'm unclear about is the difference between Alexander's Blade version (from 2015) which he claims is his file (copyright) and the Windows 10 version (2019 on my build).