What does not
What was not tested
You will need directplay installed and have windows 2003 or lower set in you wine config to get multiplayer to work.
|Operating system||Test date||Wine version||Installs?||Runs?||Used|
|Current||Arch Linux x86_64||Oct 16 2016||1.9.21||Yes||Yes||Gold||Eryk Zaplata|
|Show||Rosa Desktop Fresh R6 (2014.1)||Dec 06 2015||1.8-rc3||Yes||Yes||Platinum||Giovanni Mariani|
|Show||Mac OS X 10.11 "El Capitan"||Nov 22 2015||1.6.2||Yes||Yes||Gold||an anonymous user|
|Show||Arch Linux x86_64||May 31 2013||1.5.31||N/A||Yes||Gold||Dheart|
|Show||Arch Linux x86_64||Dec 10 2012||1.5.19||Yes||Yes||Silver||Serge Hooge|
|Bug #||Description||Status||Resolution||Other apps affected|
|5534||DirectPlay games hang when exiting multiplayer||CLOSED||FIXED||View|
|6922||Infinte wait when Stronghold host leaves||CLOSED||DUPLICATE||View|
|7395||Heroes 3 cannot change to windowed mode||CLOSED||INVALID||View|
|20360||Mouse cursor changes colour||CLOSED||FIXED||View|
|20380||Heroes of Might and Magic III hangs (not a Wine bug)||CLOSED||INVALID||View|
|22498||Stuttering sound when playing HoMM3||CLOSED||FIXED||View|
|27419||Mouse problem in Heroes of Might and Magic 3||NEW||View|
To get multiplayer working, you need native directplay dlls. The old howto had a link pointing to outdated directplay dlls which cause problems with wine and generally don't work as expected. However with the latest dplay from DirectX 9.0c multiplayer is (almost - see note for details) flawless.
In the wine wiki is described how to get native direct play dlls.
Personally I would recommend using winetricks directplay which installs dplay dlls and sets overwrite in winecfg, however you may choose do install manually those files in which case you need to:
You can now play Heroes 3 in HD, utilizing the full size of your screen, thanks to Heroes3HD mod. It doesn't change anything gameplay wise.
With recent Wine releases, Wine prefixes are set to Windows 7. Currently, it causes rendering issues when HD or HD+ mod are installed.
winecfg and setting the Windows version to Windows XP solves the rendering issues.