If you are struggling to find a stable download of version 1.0.350.1, consider a better modern approach: The Downgrader.
Tools like the GTA V Mod Manager or the RPF Patch Remover allow you to keep your game updated to the latest version (currently 1.0.3028.0 or higher) while spoofing older versions for mods. Alternatively, using OpenIV to create a mods folder keeps your original game files pristine, allowing you to use the latest Script Hook V with almost any mod (provided the mod author updates their scripts). script hook v version 1.0.350.1 download
Even with the correct Script Hook V version 1.0.350.1 download, you may encounter issues. Here’s how to fix them. If you are struggling to find a stable download of version 1
Cause: Key binding conflict or trainer not loaded. Even with the correct Script Hook V version 1
Fix: Press F4 (default). If nothing happens, check that NativeTrainer.asi is present. Try pressing F3 or F5 (some older versions use different keys).