Means the library is self-contained. It can be dropped directly into a game folder and run without registry entries or administrative installation. Key Applications and Use Cases CyberFSR and DLSS-to-FSR2 Bridging
The file is a 64-bit Dynamic Link Library (DLL) file associated with AMD FidelityFX Super Resolution 2 (FSR 2) ffx fsr2 api vk x64dll portable
When the game attempts to make a Vulkan API call for rendering, the portable .dll intercepts that call. Means the library is self-contained