Question / Help OBS not detecting game

[Singed Eyeballs]

Hi, i'm new to the world of streaming as of 2 hours ago, but i successfully have gotten other games to stream. I'm just stuck on this one --> Heroes of Might and Magic III Complete (HD). Any help getting this to work would be lovely.
I've attempted the same methodology that i used to get TERA able to stream (because OBS detected it running in the application list).
OBS doesn't appear to see it running as an application, i've tried multiple resolutions, but i feel i don't know enough about the OBS to know why it's not finding it, so i'm here asking for assistance :D
I've used this video as a guide for getting my feet wet in the world of streaming, so i think i'm not completely ignorant on the subject, haha

Here is a screenshot of Heroes 3 running (at what i assume to be fullscreen 1600*900) and OBS not detecting it in the list of applications it detects.

 

[Singed Eyeballs]

Bump, any ideas? D:

 

[Sapiens]

This game may not be compatible with game capture given its 1999 release date. If you can run the game in a window, try that and use window capture instead. Also make sure you're running the latest version of OBS, and try running OBS as administrator (right-click on the shortcut > run as administrator).

 

[Singed Eyeballs]

Yeah got it working with windowed mode, thanks :) I had to use 32 bit MMX mode, it was a simple fix, just needed to figure out HOW to get it into windowed mode, haha.