Created by Marcus O'Brien, last modified by Kenneth Robinson on Sep 24, 2026

Install and Run FFmpeg

The installation of FFmpeg will NOT modify any environment variable or registry item of a Windows 10 system but does require administrator access.

Using FFmpeg-n4.3.1 as an example, assume the build directory is located at 

C:\FFmpeg-n4.3.1\NI_MSVS2019-n4.3.1\build

and all output files are located in there.

 

  1. Click the setup.msi generated in the build directory

 

image-20260828-225333.png

  1. Choose your own installation path as administrator, for example
    C:\Program Files\NETINT

    image-20260828-225358.png

  2. Run a command prompt as Administrator

 

image-20260828-225411.png

  1. Add installation path into %PATH% variable and run init_rsrc command

    image-20260828-225448.png

  2. Start another command prompt and run your own ffmpeg command

    image-20260828-225507.png