Microsoft Windows DLL msiwer.dll

Download Msiwer.dll and Fix DLL Errors

Last Updated: 12/02/2023
[Average Article Time to Read: 4.7 minutes]

MSI Windows Error Reporting files such as msiwer.dll utilize the DLL file extension. This file is considered a Win32 DLL (Dynamic link library) file, and was first created by Microsoft for the Windows Installer - Unicode software package.

msiwer.dll was initially released with Windows 8 on 08/01/2012 for the Windows 8 Operating System. On 07/29/2015, version 5.0.15063.0 (WinBuild.160101.0800) was released for Windows 10. msiwer.dll is bundled with the software package in Windows 10, Windows 8.1, and Windows 8.

In this article, you will find detailed msiwer.dll information, a DLL file troubleshooting guide, and a list of versions that are available for free download.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	msiwer.dll
File Extension:	DLL file extension
Description:	MSI Windows Error Reporting
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:	Windows Installer - Unicode
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:	0x1d20
Code Size:	6144

View Other msiwer.dll Information

File Info	Description
File Size:	10 kB
File Modification Date/Time:	2017:03:18 18:18:36+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Warning:	Possibly corrupt Version resource
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	1988:05:20 12:47:49+00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	6144
Initialized Data Size:	3584
Uninitialized Data Size:	0
Entry Point:	0x1d20
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	6.1
Subsystem:	Windows command line
File Version Number:	5.0.15063.0
Product Version Number:	5.0.15063.0
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:	MSI Windows Error Reporting
File Version:	5.0.15063.0 (WinBuild.160101.0800)
Internal Name:	msiwer
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	MSIWER.DLL
Product Name:	Windows Installer - Unicode
Product Version:	5.0.15063.0

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

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What are msiwer.dll Error Messages?

Dynamic Link Library msiwer.dll Errors

msiwer.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like msiwer.dll, 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 msiwer.dll 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 DLL 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 msiwer.dll is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common msiwer.dll errors include:

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

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

Step 2: Run SFC (System File Checker) to restore the corrupt or missing msiwer.dll 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 msiwer.dll 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 msiwer.dll 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 msiwer.dll 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 msiwer.dll 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 msiwer.dll 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 msiwer.dll file version. We maintain a comprehensive database of 100% malware-free msiwer.dll 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 msiwer.dll 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\
Windows 8.1: C:\Windows\System32\
Windows 10: C:\Windows\System32\

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 msiwer.dll 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 msiwer.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying msiwer.dll to your appropriate Windows system directory. Microsoft typically does not release Windows DLL 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 msiwer.dll and all other DLL files for Windows. An incorrectly installed DLL 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

msiwer.dll

5.0.15063.0

5.0.15063.0 (WinBuild.160101.0800)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Windows Installer - Unicode
Software Version:	5.0.15063.0
File Version:	5.0.15063.0 (WinBuild.160101.0800)
File Size:	10240
File Date:	03/18/2017
MD5 Checksum:	eb301fe30fa1ff2cb52661d83af78ba3
SHA1 Checksum:	ef4e23618967a7401e408d7cc9b52619f2e819e6
SHA256 Checksum:	d7cf4b9bdc4c7ac3a4c8133638a48c3ab291f74e16d5e3a7bdb6ef83e7a17959
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	10.0
Initialized Data Size:	3584
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	6.1
File Modification Date/Time:	03/18/2017

Windows 8.1

File Name

Software Version

File Version

Architecture

msiwer.dll

5.0.9600.17415

5.0.9600.17415 (winblue_r4.141028-1500)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Windows Installer - Unicode
Software Version:	5.0.9600.17415
File Version:	5.0.9600.17415 (winblue_r4.141028-1500)
File Size:	9728
File Date:	11/21/2014
MD5 Checksum:	2d128274781753e6f0ab9f8c2eddcde8
SHA1 Checksum:	52401e9035274fba5f7393f1855e72cda8390408
SHA256 Checksum:	70dabb8fddf2369a2c699ecdd339fa558632c0b6f9869552af40813456bfc14e
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.3
Initialized Data Size:	3584
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	6.1
File Modification Date/Time:	11/21/2014

Windows 8

File Name

Software Version

File Version

Architecture

msiwer.dll

5.0.9200.16384

5.0.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Windows Installer - Unicode
Software Version:	5.0.9200.16384
File Version:	5.0.9200.16384 (win8_rtm.120725-1247)
File Size:	9728
File Date:	07/26/2012
MD5 Checksum:	c2277c6d93682e6f9d72b1fe1c003d69
SHA1 Checksum:	01cfac7068012eb70fc7f39587166f69d8ade250
SHA256 Checksum:	aa6de14e6cfa95dda9f0146804bbcd602fd6c04623118c1f6f247347372da425
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.2
Initialized Data Size:	4096
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	6.1
File Modification Date/Time:	07/26/2012

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Files Related to msiwer.dll

DLL Files Related to msiwer.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
dpapiprovider.dll	dpapiprovider DLL	Microsoft® Windows® Operating System (6.2.9200.16384)	48128	C:\Windows\inf\
SensApi.dll	Dynamic Link Library	Windows Vista	8704	C:\Windows\System32\Sysprep\Panther\
mimefilt.dll	MIME Filter	Microsoft® Windows® Operating System (2008.0.7601.17514)	41472	C:\Windows\Panther\NewOs\Panther\
tpmcompc.dll	Computer Chooser Dialog	Microsoft® Windows® Operating System (6.3.9600.17415)	41472	C:\Windows\inf\
ext-ms-win-gdi-path-l1...	ApiSet Stub DLL	Microsoft® Windows® Operating System (6.3.9600.16384)	3072	C:\Windows\System32\LogFiles\WMI\RtBackup\

Other Files Related to msiwer.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 7	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows Vista	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows XP	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8	6201	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 8.1	7548	C:\Windows\L2Schemas\

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