Since VMIXCODECLIBRARY.dll is the core engine responsible for encoding and decoding video streams (handling h.264, h.265, and audio codecs within vMix), it acts as the bridge between the raw frame buffer and the disk/network.
If you are seeing errors related to this file, follow these steps to restore functionality: VMIXCODECLIBRARY.dll
and then perform a fresh installation from the official website. This ensures all components, including the library, are correctly registered. The Manual Placement Since VMIXCODECLIBRARY