Fixing Wlanapi.dll.mui Issues - How to Download and Repair

Last Updated: 12/02/2024
[Time to Read Article: 5 minutes]

wlanapi.dll.mui uses the MUI file extension, which is more specifically known as a Windows WLAN AutoConfig Client Side API DLL file. It is classified as a Win32 DLL (Dynamic link library) file, created for Microsoft® Windows® Operating System by Microsoft.

wlanapi.dll.mui was first released for Windows Vista Operating System on 11/08/2006 with Windows Vista. The most recent version [file version 10.0.15063.0 (WinBuild.160101.0800)] was introduced on 07/29/2015 for Windows 10. wlanapi.dll.mui is bundled with the software package in Windows 10, Windows Vista, and Windows 8.1.

This article discusses complete file details, MUI file troubleshooting instructions for problems with wlanapi.dll.mui, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	wlanapi.dll.mui
File Extension:	MUI file extension
Description:	Windows WLAN AutoConfig Client Side API DLL
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 wlanapi.dll.mui Information

File Info	Description
File Size:	16 kB
File Modification Date/Time:	2017:03:18 05:04:10+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:	15872
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:	Windows WLAN AutoConfig Client Side API DLL
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	wlanapi.dll
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	wlanapi.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 wlanapi.dll.mui Error Messages?

Dynamic Link Library wlanapi.dll.mui Errors

wlanapi.dll.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like wlanapi.dll.mui, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like 3DViewer.ResourceResolver.exe - to follow. These files were created so that multiple programs (eg. Windows) could share the same wlanapi.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 wlanapi.dll.mui is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common wlanapi.dll.mui errors include:

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

Your wlanapi.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, wlanapi.dll.mui file corruption could be caused from a power outage when loading Windows, system crash while loading wlanapi.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 wlanapi.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 wlanapi.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 wlanapi.dll.mui error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing wlanapi.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 wlanapi.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 wlanapi.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 wlanapi.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 wlanapi.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 wlanapi.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 wlanapi.dll.mui file version. We maintain a comprehensive database of 100% malware-free wlanapi.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 wlanapi.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 Vista: C:\Windows\System32\en-US\
Windows Vista: C:\Windows\SysWOW64\en-US\
Windows 7: C:\Windows\System32\en-US\
Windows 7: C:\Windows\SysWOW64\en-US\
Windows 8: C:\Windows\System32\en-US\
Show 2 more directories +

Windows 8.1: C:\Windows\System32\en-GB\
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 wlanapi.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 wlanapi.dll.mui Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying wlanapi.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 wlanapi.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

wlanapi.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:	16384
File Date:	03/18/2017
MD5 Checksum:	1fd8ebe9bf462a8ed6fdf201d88f6171
SHA1 Checksum:	bd8948f6e648c7ed6e9ee50d4ff2a873bf1f5584
SHA256 Checksum:	1a63f9e1e290adb036f2da7841b79597d5d058f55d1a68ac8d6d466492cb2ef8
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:	15872
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 Vista

File Name

Software Version

File Version

Architecture

wlanapi.dll.mui

6.0.6001.18000

6.0.6001.18000 (longhorn_rtm.080118-1840)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
Software:	Microsoft® Windows® Operating System
Software Version:	6.0.6001.18000
File Version:	6.0.6001.18000 (longhorn_rtm.080118-1840)
File Size:	13824
File Date:	01/21/2008
MD5 Checksum:	2ea39cf81003e868bb4bf7767bfc6ddd
SHA1 Checksum:	63895cccb63e2437386451810f2dbbb6bbd5ac22
SHA256 Checksum:	61df2f102d0000adbc079528b281a4c705371c54b4ba06a87f9a2e7d5f415fea
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	6.0
Initialized Data Size:	13312
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	5.2
File Modification Date/Time:	01/21/2008

wlanapi.dll.mui

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
File Size:	14336
MD5 Checksum:	19d86fbce75b1b8ef278f8542481b6c9
SHA1 Checksum:	1786ef5c594fbe05d497bb0a27567b5475b84ead
SHA256 Checksum:	259ff2575ae0773d343ae1655a3111f01e477c7a73e8aa1146d0bc4aabaa5873
CRC32:
File Directory Location:	C:\Windows\SysWOW64\en-US\

File Version, System, and Machine Information
There is no information available.

Windows 8.1

File Name

Software Version

File Version

Architecture

wlanapi.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:	16384
File Date:	11/21/2014
MD5 Checksum:	023df5c6370d436c8e0cd5951e28a7b2
SHA1 Checksum:	549866e715b2aeb00bee40300a99a54a72e1d43f
SHA256 Checksum:	5f79e53cb8966d203cd3d4017cc06d25fcdf6bddb0fa5b41990edafdb7dfc413
CRC32:
File Directory Location:	C:\Windows\System32\en-GB\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.3
Initialized Data Size:	15872
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

wlanapi.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:	15872
File Date:	07/26/2012
MD5 Checksum:	01bfb55918f948600fbdc458f48b4f35
SHA1 Checksum:	15f945fec2a212974fccae42bb29fb1445eea241
SHA256 Checksum:	02b07b8e7102404986d76f9ea3631234e939299d9d3f269aaed3fbde60b7875a
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:	15360
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

Windows 7

File Name

Software Version

File Version

Architecture

wlanapi.dll.mui

6.1.7600.16385

6.1.7600.16385 (win7_rtm.090713-1255)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7600.16385
File Version:	6.1.7600.16385 (win7_rtm.090713-1255)
File Size:	15872
File Date:	04/12/2011
MD5 Checksum:	eb6ba6ea40227f3ea47ffddc02cd7e09
SHA1 Checksum:	97240bfea5cd779eb736555f4ccd4f878cd10eb6
SHA256 Checksum:	4b882d1c9713f0efb685918d30a90813472ad04e9d26b4f708713f76502cfd97
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	6.1
Initialized Data Size:	15360
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	5.2
File Modification Date/Time:	04/12/2011

wlanapi.dll.mui

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
File Size:	15872
MD5 Checksum:	db8d0c4a20c605865ad233612ef17c37
SHA1 Checksum:	5cd2bd0e42dc451b4912fc9e05565b17fce83fdd
SHA256 Checksum:	43858c7fa22babcce38f9501d4243c72ead42e21d9e975b66fd63598152a0449
CRC32:
File Directory Location:	C:\Windows\SysWOW64\en-US\

File Version, System, and Machine Information
There is no information available.

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Files Related to wlanapi.dll.mui

MUI Files Related to wlanapi.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
loadperf.dll.mui	Myriad User Instrument	Windows 7	18432	C:\Windows\
WmiApSrv.exe.mui	WMI Performance Reverse Adapter	Microsoft® Windows® Operating System (6.1.7600.16385)	2560	C:\Windows\inf\
IpsMigrationPlugin.dll...	Myriad User Instrument	Windows 7	2560	C:\Windows\inf\WmiApRpl\0009\
iscsicpl.dll.mui	iSCSI Initiator Control Panel Applet	Microsoft® Windows® Operating System (5.2.3790.1830)	46080	C:\Windows\Panther\UnattendGC\
memtest.exe.mui	Myriad User Instrument	Windows 8	42224	C:\Users\Bill\AppData\Roaming\Microsoft\Windows...

Other Files Related to wlanapi.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows Vista	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows XP	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows 10	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 7	6201	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows XP	15263	C:\Windows\L2Schemas\

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