This patch does not natively support 16:9 or 21:9 resolutions. You may need a community "Widescreen Fix" or "Camera Mod" in addition to v1.01.
Check the bottom-right corner of the main menu screen; it should display v1.01 . File: Homeworld.Emergence.v1.01.zip ...
The version of Emergence sold on GOG.com already includes the 1.01 fixes and additional wrappers (like nGide) for modern displays. This patch does not natively support 16:9 or
Unzip the contents of the archive into your main game directory. File: Homeworld.Emergence.v1.01.zip ...
The file typically refers to a specific update or fan-maintained patch for the 2000 real-time strategy game originally known as Homeworld: Cataclysm .