Click the "Read Memory" button. If the tool populates your inventory grid with your current weapons (Handgun, Shotgun, etc.), you are synced. If it shows garbage data (FFFFFF), you have the wrong game version or the memory shift is active.
Before the polished re-releases on Steam and modern consoles, the 2007 Windows port of Resident Evil 4 was notoriously buggy and restrictive. Modding tools were primitive. Early trainers allowed for infinite health or ammo, but they couldn't change what you actually carried.
In 2025 (or 2026), with the Remake out and the original available on every platform, the debate seems quaint. But back then, purists on GameFAQs would flame anyone using V1.1.
Whether you want to give Ashley a Rocket Launcher, fill the lake with Bass, or simply skip the frustrating water room with a stack of Flash Grenades, V1.1 remains the ultimate key. Just remember to save often, watch out for the Salazar Effect, and never—ever—sell the fake eye before you leave the castle.