That dll should be in your GTAV root directory.
Go inside your GTAV folder,
Press Ctrl+A for selecting all the files in there,
While holding shift key, right click and select Copy as Path from the context menu,
Paste that here
That dll should be in your GTAV root directory.
Go inside your GTAV folder,
Press Ctrl+A for selecting all the files in there,
While holding shift key, right click and select Copy as Path from the context menu,
Paste that here