Sometimes the game needs to "Run as Administrator" to allow the loader to inject code.
: Standard practice for Vice City is naming it dinput8.dll . If the game doesn't load your mods, try dsound.dll or vorbisFile.dll .
Are you using the or the Definitive Edition ?
Alternatively, downloading the is highly recommended, as it includes the Ultimate ASI Loader by default.
: Create a folder named scripts in your game directory to keep your .asi plugins organized.
: Unlike basic loaders, the "Ultimate" version can be renamed to various system DLL names (like dinput8.dll dsound.dll vorbisFile.dll ) to ensure it hooks into the game process correctly. Crash Handler