Under the tab, set your Output API to Direct3D 11 or 12.
: If you prefer playing the standalone base game, you can force it into windowed mode or specific resolutions by editing the user.cfg file found in your documents folder ( \Documents\My Games\Heroes of Might and Magic V\Profiles\ \user.cfg ). Change setvar gfx_fullscreen to 0 for windowed mode. heroes 5 widescreen fix best
If you are still experiencing issues, or if you'd like me to walk you through the specific steps for the H5_Game.exe patcher, Share public link Under the tab, set your Output API to Direct3D 11 or 12
You might find old forum posts telling you to edit user.cfg or use a standalone tool called "HoMM5 Widescreen Fixer." The manual config edits usually break the UI (buttons become unclickable) or cause the strategic map overlay to misalign. The old Fixer tool is abandoned and crashes on Windows 10/11. If you are still experiencing issues, or if
setvar gfx_resolution = 1920x1080 (Replace with your exact screen resolution).
Alternatively, look for "HoMM 5.5 campaigns for TOE" to specifically play the base campaigns in the engine that handles widescreen better.