This error is on original Steam or Rockstar Launcher versions, but common on "Vice City Verified" repacks.
Find the existing mss32.dll file and rename it to mss32.dll.bak (this preserves a backup just in case).
The error "AIL set stream volume8 could not be located" appears when Grand Theft Auto: Vice City (or mods for it) cannot find or properly load a sound/streaming function from the audio library or game files. This article explains common causes and step-by-step fixes for verified game installs (non-pirated, patched versions).
Follow these sequential methods to repair your installation and restore the classic sounds of Vice City. Method 1: Replace or Restore the Correct mss32.dll File
The by Silent is a community-made fix that corrects dozens of errors in GTA: Vice City, including AIL stream issues, audio corruption, and the "cannot locate volume8" problem. This error is on original Steam or Rockstar
If you are running a digital version of the game via a launcher, your files might have been corrupted during download.
Several factors can contribute to the "AIL Set Stream Volume(8) could not be located" error in Vice City:
). This usually happens when applying a "no-CD" crack or a modern patch to an older installation. Top Fix: Use the "testapp.exe" Method
: A mismatch between the version of mss32.dll in your game folder and what the game executable ( gta-vc.exe ) expects. This article explains common causes and step-by-step fixes
Upgrading the Miles Sound System .dll file to a newer, compatible version frequently eliminates the entry point error.
For standard installations: C:\Program Files (x86)\Rockstar Games\Grand Theft Auto Vice City\
The primary culprit is the Miles Sound System library.
The term "Verified" often appears in cracked or community-patched versions of Vice City. These versions modify the original gta-vc.exe to remove CD checks or improve compatibility. However, if the crack was made for an older patch (e.g., v1.0) and you try to run it with updated DLLs or on Windows 10/11, the audio function addresses shift. The game then points to a memory location where set stream volume8 no longer exists. If you are running a digital version of
If enabling DirectPlay fails, your mss32.dll file is likely corrupt or mismatched with your game version. Replacing it with a verified version fixes the missing entry point.
Windows sometimes struggles to bridge the gap between modern audio architecture and the older 32-bit calls used by Vice City. Right-click gta-vc.exe . Select > Compatibility .
Fortunately, this classic entry-point bug can be easily resolved using a few verified troubleshooting methods. Why This Error Happens