Navigate to your GTA Vice City installation folder (usually C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto Vice City or where you installed the disc version). Look for the file named .

Click the plus sign to expand it, then check the box next to .

This simple step resolves the AIL_set_stream_volume@8 error for a huge number of players because it restores the audio‑related system components that Vice City expects.

Choose or Windows 98 / Windows Me from the dropdown list.

Click , navigate to your installation folder, select gta-vc.exe , and click Apply . Technical Summary of the Error Target Executable gta-vc.exe Faulting Module mss32.dll (Miles Sound System) Missing Parameter _Ail_set_stream_volume@8 Primary OS Affected Windows 10 & Windows 11 (64-bit systems)

Click and allow Windows to download and install the required legacy files. Restart your computer and try running Vice City. 4. Configure Compatibility Mode

If all else fails, a completely clean reinstall is your best bet. This is important because just uninstalling through Control Panel often leaves behind configuration files that might be the problem.