dsound.dll is missing or crashes a game: what the file is and how to fix it

Each file below is Microsoft's own dsound.dll for one Windows release, fetched from Microsoft's own server and checked against Winbindex, the index of the files in Windows images and updates. Pick your Windows version (Settings, System, About shows it) and the build: 64-bit for System32, 32-bit for SysWOW64. The repair steps above are still the better fix, because Windows protects these folders and keeps its copy updated. Use a file here to compare it with a copy you have, or when System File Checker and DISM cannot repair the file.

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The wording tells you which problem you have. These are the texts Windows shows, as written, with the file name filled in.

dsound.dll is the DirectSound library. Games and programs load it to play, mix and position sound effects and music, and older games use its 3D sound interface and EAX effects for surround and room echo. On Windows 10 and Windows 11 DirectSound plays through the Windows audio engine, so its sound goes to whatever playback device Windows uses. Windows keeps the file so that older games keep working. What Windows reports for the genuine file:

On 64-bit Windows, System32 holds the 64-bit file and SysWOW64 the 32-bit one; the folder names are historical. When a game starts, Windows looks for dsound.dll in the game's own folder first, which is exactly what ASI loaders and sound wrappers rely on: a file with this name next to the game's .exe is loaded instead of the Windows copy. The genuine file describes itself as DirectSound (Properties, Details, File description) with Microsoft Corporation as the company, and is a few hundred kilobytes: in the Windows 11 24H2 and 25H2 builds the 64-bit file is 598,016 bytes and the 32-bit file 458,752 bytes. A loader usually shows another description, another size, and no Microsoft signature.

Every Windows release has its own build of dsound.dll, updated together with Windows. Winbindex lists 119 distinct Microsoft builds; the table shows the newest one indexed for each release and the update that delivered it.

Public DLL catalogues have collected 14 copies of dsound.dll uploaded from PCs, from version 4.8.1.881 to 10.0.14393.0. Many come from older Windows releases, back to Windows XP. The table lists each with its checksums, so you can tell which one you have.

None of these replaces the file your Windows ships: the newest build indexed for Windows is 10.0.28000.2336, and each release keeps its own. If the check on this page finds your file in this list, it is most likely an older Microsoft build that was copied somewhere by hand, often into an old game's folder. Confirm the Microsoft signature, remove the copy from the game folder, and let Windows use its own.

Copies uploaded by users to a public DLL catalogue, read on 18 October 2026. We list their checksums so you can identify a file; we do not offer them for download and we did not verify each one against Microsoft's signature.