The specific relevance of Hero Editor for the 1.14d patch cannot be overstated. When Blizzard released patch 1.14 in 2016, it broke compatibility with many older editors. The community scrambled, and updated versions of Hero Editor were released to accommodate the new file structures.
Right-click the editor's executable and set it to run in Windows XP (Service Pack 3) or Windows 95 compatibility mode to prevent startup crashes.
Despite the negative connotations often attached to “cheating,” the Hero Editor serves legitimate and valuable purposes for the 1.14d community.