: Often distributed as a lightweight ZIP file containing a dynamic link library (DLL) or executable that hooks into the game's startup sequence.

: Prevents the VAC system from scanning or reporting the game state to Valve's servers, allowing users to run external or internal cheats with a reduced risk of an immediate automated ban.

: Many versions work by patching specific memory addresses (offsets) to ensure the game client believes VAC is running correctly while it is actually dormant.