Repair Dot3mm.dll.mui Issues (How to Download and Fix)

Last Updated: 11/30/2023
[Time to Read: ~3-5 minutes]

dot3mm.dll.mui, also known as a Wired Network Media Manager file, was created by Microsoft for the development of Microsoft® Windows® Operating System. MUI files fall under under the Win32 DLL (Dynamic link library) file type category.

The first version of dot3mm.dll.mui was released for the Windows 8 Operating System on 08/01/2012 inside Windows 8. The most recent release for Windows 10 launched on 07/29/2015 [version 10.0.15063.0 (WinBuild.160101.0800) release]. dot3mm.dll.mui is bundled with the software package in Windows 10, Windows 8.1, and Windows 8.

Continue reading below to discover detailed file information, MUI file troubleshooting, and free downloads of several versions of dot3mm.dll.mui.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	dot3mm.dll.mui
File Extension:	MUI file extension
Description:	Wired Network Media Manager
Object File Type:	Dynamic link library
File Operating System:	Windows NT 32-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Microsoft Corporation
Software Program:	Microsoft® Windows® Operating System
Legal Copyright:	© Microsoft Corporation. All rights reserved.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x0000

View Other dot3mm.dll.mui Information

File Info	Description
File Size:	3.0 kB
File Modification Date/Time:	2017:03:18 05:00:20+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	0000:00:00 00:00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	0
Initialized Data Size:	2560
Uninitialized Data Size:	0
Entry Point:	0x0000
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	6.0
Subsystem:	Windows GUI
File Version Number:	10.0.15063.0
Product Version Number:	10.0.15063.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	Wired Network Media Manager
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	Dot3MM.dll
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	Dot3MM.dll.mui
Product Name:	Microsoft® Windows® Operating System
Product Version:	10.0.15063.0

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are dot3mm.dll.mui Error Messages?

Dynamic Link Library dot3mm.dll.mui Errors

dot3mm.dll.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like dot3mm.dll.mui, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like sapisvr.exe - to follow. These files were created so that multiple programs (eg. Windows) could share the same dot3mm.dll.mui file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared MUI file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when dot3mm.dll.mui is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common dot3mm.dll.mui errors include:

Access Violation at address - dot3mm.dll.mui.
dot3mm.dll.mui could not be found.
Cannot find C:\Windows\System32\en-US\dot3mm.dll.mui.
Cannot register dot3mm.dll.mui.
Cannot start Windows. A required component is missing: dot3mm.dll.mui. Please install Windows again.
Failed to load dot3mm.dll.mui.
The application has failed to start because dot3mm.dll.mui was not found.
The file dot3mm.dll.mui is missing or corrupt.
This application failed to start because dot3mm.dll.mui was not found. Re-installing the application may fix this problem.

Your dot3mm.dll.mui file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Windows), or deleted by a malware infection. Furthermore, dot3mm.dll.mui file corruption could be caused from a power outage when loading Windows, system crash while loading dot3mm.dll.mui, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix dot3mm.dll.mui Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your dot3mm.dll.mui issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the dot3mm.dll.mui error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing dot3mm.dll.mui file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt dot3mm.dll.mui files (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
SFC will begin scanning for dot3mm.dll.mui issues and any other system file problems.
Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many dot3mm.dll.mui error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the dot3mm.dll.mui error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your dot3mm.dll.mui File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate dot3mm.dll.mui file version. We maintain a comprehensive database of 100% malware-free dot3mm.dll.mui files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download dot3mm.dll.mui Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy the file into the appropriate directory for your Windows version:

Windows 8: C:\Windows\System32\en-US\
Windows 8.1: C:\Windows\System32\en-US\
Windows 10: C:\Windows\System32\en-US\

Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve dot3mm.dll.mui problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download dot3mm.dll.mui Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying dot3mm.dll.mui to your appropriate Windows system directory. Microsoft typically does not release Windows MUI files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing dot3mm.dll.mui and all other MUI files for Windows. An incorrectly installed MUI file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

File Name

Software Version

File Version

Architecture

dot3mm.dll.mui

10.0.15063.0

10.0.15063.0 (WinBuild.160101.0800)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft® Windows® Operating System
Software Version:	10.0.15063.0
File Version:	10.0.15063.0 (WinBuild.160101.0800)
File Size:	3072
File Date:	03/18/2017
MD5 Checksum:	a6f934249b68dff07116c73496b75af5
SHA1 Checksum:	0b48dd663cb344319b7cf505b19a2acbc06e067f
SHA256 Checksum:	2565d3e91ddffbed6aab311b29e61fae40a7aa8cfa22a398dad78b0e1600dccd
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	10.0
Initialized Data Size:	2560
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	03/18/2017

Windows 8.1

File Name

Software Version

File Version

Architecture

dot3mm.dll.mui

6.3.9600.16384

6.3.9600.16384 (winblue_rtm.130821-1623)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	6.3.9600.16384
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
File Size:	2560
File Date:	11/21/2014
MD5 Checksum:	795e2f37856d7c0c1296021e0749507a
SHA1 Checksum:	52e94e1713dd2a41441247d0ab369b8f17e5c7a5
SHA256 Checksum:	ce648748d3ec2c043ec24b8486fa79ad2ac2a63c1499ce8f5b126e3ca87ac848
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.3
Initialized Data Size:	2048
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	11/21/2014

Windows 8

File Name

Software Version

File Version

Architecture

dot3mm.dll.mui

6.2.9200.16384

6.2.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Microsoft® Windows® Operating System
Software Version:	6.2.9200.16384
File Version:	6.2.9200.16384 (win8_rtm.120725-1247)
File Size:	2560
File Date:	07/26/2012
MD5 Checksum:	554c19cf73b69000c66c1289bb97f009
SHA1 Checksum:	def0de6818a1fdd5ca59675fa49a52570cc0c718
SHA256 Checksum:	596a7e779e7125face23014fab08ae21e0370a5a8465a296e4e3ee4983197f78
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.2
Initialized Data Size:	2048
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	5.1
File Modification Date/Time:	07/26/2012

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Files Related to dot3mm.dll.mui

MUI Files Related to dot3mm.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
comdlg32.dll.mui	Myriad User Instrument	Windows 7	52224	C:\$WINDOWS.~BT\Sources\Boot\PXE\ro-RO\
DiagPackage.dll.mui	Myriad User Instrument	Windows 8	5120	C:\Windows\System32\DriverStore\FileRepository\...
PhoneOm.dll.mui	Phone Object Model	Microsoft® Windows® Operating System (10.0.15063.0)	11776	C:\Windows\Microsoft.NET\Framework\v2.0.50727\1...
taskhostex.exe.mui	Host Process for Windows Tasks	Microsoft® Windows® Operating System (6.2.9200.16384)	2048	C:\Windows\System32\LogFiles\WMI\RtBackup\
dui70.dll.mui	Myriad User Instrument	Windows 7	2048	C:\Windows\Panther\UnattendGC\

Other Files Related to dot3mm.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	6201	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows Vista	15591	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows XP	15263	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 10	18585	C:\Windows\L2Schemas\
WLAN_policy_v1.xsd	XML Schema Definition	Windows 7	7405	C:\Windows\L2Schemas\

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