The most reliable solution is to manually tell the game to use "Software" sound instead of looking for a hardware 3D provider that no longer exists in modern Windows.
This is a controversial but effective fix. The legitimate retail CD version of IGI 2 uses SafeDisc copy protection, which is (Microsoft removed the driver in 2015). The SafeDisc driver secdrv.sys can also interfere with sound provider enumeration. igi 2 fatal error could not find 3d sound provider
The most reliable solution is to manually tell the game to use "Software" sound instead of looking for a hardware 3D provider that no longer exists in modern Windows.
This is a controversial but effective fix. The legitimate retail CD version of IGI 2 uses SafeDisc copy protection, which is (Microsoft removed the driver in 2015). The SafeDisc driver secdrv.sys can also interfere with sound provider enumeration.