Hello I've got a problem. Whenever i try to do some certain actions like entering a ship,looting,building my game freezes.I can still move the cursor and hear music, but thats it.I tried combatibility modes but to no effect. I've played it on previous patch (2.0 i believe?) and it worked flawlessly. Any tips?
OS: Win 8.1

did you try the gl wrapper?

I did. No effect :(

is that dos box version?
what version of the wrapper ? Did you try to update it?
latest has more than one file. did you applied all the files?
What you are describing seems like the game is trying to load a sound effect but can't find it.
Can you hear horse galloping sound fx when moving about?
If no, re-aplly wrapper with all the files and folders it provides

It's a direct download (not optional) from GOG. There's a DOSBOX folder in game directory but it doesn't seem to start with it. I were trying to run this manually but got an error that says it cant be run in dos mode.
By wrapper you mean DOSBOX version? Yes i redownloaded the newest version and still the problem occurs.
There are proper sounds playing but it freezes afterwards. When i played the gog version 3 years ago there were DOS prompts while launching the game. Now there are none.

No. Win version.
See: https://www.gog.com/forum/heroes_of_might_and_magic_series/graphic_gl_wrapper_for_all_heroes_heroes_of_might_and_magic_1_2_3_4_and_chronicles_for_better_wo/page1

or direct link https://verokster.blogspot.com/2018/10/heroes-of-might-and-magic-i-iv-gl.html

Allright, all I needed to do was to update Windows. Now everything works. Thank you for replies guys.