DLL

winmmbase.dll

Download and install winmmbase.dll to fix missing or corrupted DLL errors.

(39 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® Windows® Operating System
Description
Base Multimedia Extension API DLL
Architecture
x86-64 (64 bit) x86 (32 bit) ARM64 ARM (Thumb 2)
Metadata Consensus
38/39 Files 97.4%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Frequently Asked Questions

What is winmmbase.dll?

Metadata analysis shows winmmbase.dll is a Dynamic Link Library (DLL) developed by Microsoft Corporation for Microsoft® Windows® Operating System and is described as “Base Multimedia Extension API DLL” .

DLL files (Dynamic Link Libraries) are shared core modules used by Windows programs to run efficiently without duplicating code. Most errors occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application, repairing Windows, or replacing the DLL resolves the issue.

How do I fix missing DLL errors?
1

Software Fix

Fully uninstall and reinstall the program causing the error. If you are not sure what program is broken, look at the available file metadata above for hints. If a clean reinstall fails, download and install the DLL file manually.

2

Windows System Fix

Make sure Windows is fully updated. To repair system files automatically, right-click the Start menu, open PowerShell (Admin), and run these two commands in order:

Step A DISM /Online /Cleanup-Image /RestoreHealth
Step B sfc /scannow
How do I install DLL files?
1

Download & Extract

Download the file, right-click the folder, and extract all files to your computer.

2

Install the .DLL

Move the extracted DLL file into the root folder of the software that is giving you the error (where its .exe file is located), or place it in the system directory below:

32-bit → C:\Windows\SysWOW64
64-bit → C:\Windows\System32
3

Restart the Program

Close and reopen the program or game so Windows can look for and load the new DLL file.

How do I register DLL files?

Most DLL files do not need registration. However, if your file is a COM component and requires explicit system registration, follow these steps:

1

Open Terminal

Right-click the Start menu and open PowerShell (Admin) or Command Prompt (Admin).

2

Run Command

Type the command below for your file type and press Enter. You can drag and drop the DLL file directly into the terminal window to fill its path automatically.

64-bit regsvr32 "C:\path\to\filename.dll"
32-bit C:\Windows\SysWOW64\regsvr32 "C:\path\to\filename.dll"

Latest Releases

winmmbase.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Base Multimedia Extension API DLL
Version: 10.0.26100.8737 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.8737
Language: U.S. English (1033)
Uploaded: Jul 10, 2026   Size: 227.5KB
SHA256: 4ca83761bca5e559b969b1236b00feeb0f08e81fcb2767d0f0ce47ea8ca4bc52
SHA1: 9a47bc368e4407a059ef03b106eaf326e9297125
MD5: b2652eff44ebc8f67eea0574bd79681f
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
winmmbase.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Base Multimedia Extension API DLL
Version: 10.0.26100.8737 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.8737
Language: U.S. English (1033)
Uploaded: Jul 10, 2026   Size: 142.9KB
SHA256: 14e3642f36c30e8aee7cc1c9f7f1c490ccac328d55fc883bf512956b952b2c28
SHA1: 4904243a06506c898ac81a3901476409c57c6b41
MD5: bb626e303e5298a03c836c11cf2e5e04
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
winmmbase.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Base Multimedia Extension API DLL
Version: 10.0.26100.8690 (WinBuild.160101.0800)
Product Version: 10.0.26100.8690
Language: U.S. English (1033)
Uploaded: Jul 1, 2026   Size: 222.2KB
SHA256: 102ae06e1cbfa1ad87aa10d03dd4f139e31f6600a8cf712c83f66c1f1b97bef4
SHA1: 2aca154abdbc82295dda8fed93419224c0bf09b4
MD5: 01942bf080085c60ae5fc5489e61bf2f
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
winmmbase.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Base Multimedia Extension API DLL
Version: 10.0.26100.8690 (WinBuild.160101.0800)
Product Version: 10.0.26100.8690
Language: U.S. English (1033)
Uploaded: Jul 1, 2026   Size: 136.1KB
SHA256: 334e6b6833c5e426e5d93e101c4fb678d8c01a92303be8c6cf81e1bd92bbbeef
SHA1: 48e5a40cb4eb9c21315ae0441b84ce954ec3be16
MD5: 2ccae1c8822565f0ebfad4683e4200de
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
winmmbase.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Base Multimedia Extension API DLL
Version: 6.2.9200.16384 (win8_rtm.120725-1247) Verified
Product Version: 6.2.9200.16384
Language: U.S. English (1033)
Uploaded: Oct 15, 2025   Size: 176KB
SHA256: 9166e1f688667bb8e59e52bbb62becd41c765ee5069a633835639fa5f18471c5
SHA1: 747afa2769b52cbe53a377867f5213077a07f34d
MD5: 15343aa01c41f7ab4fe549499159db6f
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD