2. If you are creating your own maps or editing existing ones (not WoG maps), it is best to use the SoD map editor. If you have WoG installed, both editors should be in the "Heroes" folder:
SoD editor - h3maped.exe,
WoG editor - h3wmaped.exe.
Accordingly, there are also 2 campaign editors.
And just in case: SoD is launched with Heroes3.exe, and WoG is launched with h3wog.exe. However, nowadays almost everyone uses the HD mod – then the mod's executable, HD3Launch.exe, is launched.
(Василь Симоненко. Люди – прекрасні)