2025 update: I played through the entire game recently with a variation of what I typed in the following. Works great. So, HD videos cannot be used, but its good without. I looked into the HD video a bit more, but as the ones who worked on the patch DIDN'T helpfully specifiy what they did, and its originally from many OS's earlier with a newer change also too many years ago now, I don't expect much without a another patch to it. OS software for video playback has changed over the years. So far, I DON'T see anyone anywhere mention anything that actually gets them working without needing further changes to the HD video patch.
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TLDR: So, I looked into this. Can play without the HD videos. But the HD video support of the patches leads to only problems.
You should be able to dirty install the patches into this order and be fine. If the HD videos are in the movie dir then delete the movie dir. If you see any issue then you may need to fully uninstall and then reinstall clean.
Done on Windows 11 GOG version and working but no HD videos. It does seem to improve the in-game models and stuff. I didn't check with the older? opengl + model pack. It might be that these two already do that.
Sadly, the game patches as they are, if you use a higher res than 640x480, it will make the in-game parts go all odd with 4:3 black bars and then even larger black bars during transitions. I don't see anything anywhere that can fix that but to use a lower resolution such as 640x480. To me, its better at 640x480 which defeats more of the purpose of the patches.
- Do in this order:
1. browse wcpep_release and copy all but prophecy.exe. Unknown as to why the exe errors with disc 1 error. I tried the disc and it still has this problem. Something wrong with their custom exe. Just need to use the GOG provided exe instead.
https://www.wcnews.com/wcpedia/Enhancement_Pack 2. OpenGL-WCP_setup.exe + run setup and set to your resolution or a lower resolution that enlarge the in-game parts
https://www.wcnews.com/wcpedia/OpenGL_Patch 3. (Optional) You can do other things like run the enhancement's install.exe in the game dir (first *copy* in the 4 files listed in the patch dir readme). I did do this so am listing it in the event it did something but I tested it initially to nothing noticed.
4. (Optional) Install the most recent upgraded model pack. Select to include models during install.
https://www.wcnews.com/news/2019/08/26/mup-project-now-beta-testing Nothing else is necessary.
The HD videos and patches for it are just broken. I've tried many things and the result is always a no play situation. The patches themselves need work here. I *REALLY* do not recommend even trying that at this time. Its just *that* broken on Win11.
This is not tested at this point beyond simply going into mission 1 and looking around. I intend to play the game with this and see how it goes. Don't know when I will play it.