MozMapi32.dll Download and Repair: Troubleshooting DLL Errors

Last Updated: 11/28/2023
[Time to Read Article: 5 minutes]

mozMapi32.dll is considered a type of Dynamic Link Library file. It is most-commonly used in Eudora developed by Qualcomm. It uses the DLL file extension and is considered a Win32 DLL (Dynamic link library) file.

The first version of mozMapi32.dll for Mozilla Thunderbird 68.2.0 was seen on 10/22/2019 in Windows 10. The latest file version for Eudora OSE 1 is v0.8 released on 12/06/2010.

Please continue reading to find your correct mozMapi32.dll file version download (free), detailed file information, and DLL file troubleshooting instructions.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	mozMapi32.dll
File Extension:	DLL file extension
Object File Type:	Dynamic link library
File Type:	Dynamic Link Library
Description:	Dynamic Link Library
Comments:	Mozilla Thunderbird MAPI Dll
File Operating System:	Win32
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Mozilla.org
Software Program:	Eudora
Legal Copyright:	©Thunderbird and Mozilla Developers, according to the MPL 1.1/GPL 2.0/LGPL 2.1 licenses, as applicable.

File Details
Character Set:	Unicode
Language Code:	Neutral
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x1a17
Code Size:	27648

View Other mozMapi32.dll Information

File Info	Description
File Size:	44 kB
File Modification Date/Time:	2019:11:25 12:21:31+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2010:07:23 04:36:55+00:00
PE Type:	PE32
Linker Version:	8.0
Code Size:	27648
Initialized Data Size:	19456
Uninitialized Data Size:	0
Entry Point:	0x1a17
OS Version:	4.0
Image Version:	0.0
Subsystem Version:	4.0
Subsystem:	Windows GUI
File Version Number:	0.8.0.0
Product Version Number:	1.9.1.3855
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Win32
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	Neutral
Character Set:	Unicode
Company Name:	Mozilla.org
File Description:
File Version:	0.8
Internal Name:	mozMapi32
Legal Copyright:	©Thunderbird and Mozilla Developers, according to the MPL 1.1/GPL 2.0/LGPL 2.1 licenses, as applicable.
Product Name:	Eudora
Product Version:	1.9.1.9
Comments:	Mozilla Thunderbird MAPI Dll
Legal Trademarks:	Mozilla

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

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What are mozMapi32.dll Error Messages?

Dynamic Link Library mozMapi32.dll Errors

mozMapi32.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like mozMapi32.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. Eudora OSE) could share the same mozMapi32.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 mozMapi32.dll is attempted to be loaded either when Eudora OSE is starting up, or in some cases already running. Some of the most common mozMapi32.dll errors include:

Access Violation at address - mozMapi32.dll.
mozMapi32.dll could not be found.
Cannot find C:\Program Files (x86)\Eudora OSE\mozMapi32.dll.
Cannot register mozMapi32.dll.
Cannot start Eudora OSE. A required component is missing: mozMapi32.dll. Please install Eudora OSE again.
Failed to load mozMapi32.dll.
The application has failed to start because mozMapi32.dll was not found.
The file mozMapi32.dll is missing or corrupt.
This application failed to start because mozMapi32.dll was not found. Re-installing the application may fix this problem.

Your mozMapi32.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Eudora OSE), or deleted by a malware infection. Furthermore, mozMapi32.dll file corruption could be caused from a power outage when loading Eudora OSE, system crash while loading mozMapi32.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 mozMapi32.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 mozMapi32.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 mozMapi32.dll error, please proceed to the Step 2 below.

Step 2: If recently installed Eudora OSE (or related software), uninstall then try reinstalling Eudora OSE software.

You can uninstall Eudora OSE software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for Eudora OSE 1 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Eudora OSE software.

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

Eudora OSE 1

Qualcomm

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 mozMapi32.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 mozMapi32.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 mozMapi32.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 mozMapi32.dll file version. We maintain a comprehensive database of 100% malware-free mozMapi32.dll files for every applicable version of Eudora OSE. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download mozMapi32.dll Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Eudora OSE folder location:

Windows 10: C:\Program Files (x86)\Eudora OSE\
Windows 10: C:\Program Files (x86)\Mozilla Thunderbird\
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 mozMapi32.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 mozMapi32.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying mozMapi32.dll to your appropriate Windows system directory. Qualcomm typically does not release Eudora OSE 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 mozMapi32.dll and all other DLL files for Eudora OSE. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Eudora OSE 1

File Name

Software Version

File Version

Architecture

mozMapi32.dll

1.9.1.3855

0.8

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Eudora
Software Version:	1.9.1.3855
File Version:	0.8
File Size:	45056
File Date:	11/25/2019
MD5 Checksum:	ffafd5223abcf9aef38a45ac88ddf800
SHA1 Checksum:	fcd0349907a5f0046f0cece973f5f74ca13993a0
SHA256 Checksum:	bb080b84109026933a5cbb740f6984efbd4bd680c7f0a0aa40b616ba2e348e37
CRC32:
File Directory Location:	C:\Program Files (x86)\Eudora OSE\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	19456
Linker Version:	8.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	4.0
File Modification Date/Time:	11/25/2019

Mozilla Thunderbird 68.2.0

File Name

Software Version

File Version

Architecture

mozMapi32.dll

68.2.0.7233

0.8

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Thunderbird
Software Version:	68.2.0.7233
File Version:	0.8
File Size:	95264
File Date:	11/09/2019
MD5 Checksum:	643c9a8674331b9af977cf98eb3b19d3
SHA1 Checksum:	a095b6745035ac9a8194fea9da225cf2186b1c26
SHA256 Checksum:	6ae09857087b6a76d4603953f580707a75670a34f19f4aca4c41945c366214ff
CRC32:
File Directory Location:	C:\Program Files (x86)\Mozilla Thunderbird\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	32256
Linker Version:	14.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.1
File Modification Date/Time:	11/09/2019

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Files Related to mozMapi32.dll

DLL Files Related to mozMapi32.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
nss3.dll	NSS Base Library	Network Security Services (3.12.6.2 Basic ECC)	638976	C:\Windows\System32\fr-FR\
Qt5PrintSupport.dll	C++ Application Development Framework	Qt5 (5.11.1.0)	275816	C:\Users\Tester\AppData\Local\Microsoft\Windows\
vcamp140_app.dll	Microsoft® C++ AMP Runtime	Microsoft® Visual Studio® 2017 (14.22.27810.0)	344424	C:\Users\Bill\Links\
Qt5QuickTemplates2.dll	C++ Application Development Framework	Qt5 (5.11.1.0)	784744	C:\Users\Tester\AppData\Local\Microsoft\Windows\
msvcp140.dll	Microsoft® C Runtime Library	Microsoft® Visual Studio® 2017 (14.16.27012.6)	441704	C:\Windows\Microsoft.NET\Framework\v4.0.30319\

Other Files Related to mozMapi32.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
CBS.log	Log	Eudora OSE 1	888726	C:\Windows\Logs\CBS\
setupact.log	Log	Eudora OSE 1	16082	C:\Windows\System32\Sysprep\Panther\
diagwrn.xml	Extensible Markup Language	Eudora OSE 1	5718	C:\Windows\System32\Sysprep\Panther\
diagerr.xml	Extensible Markup Language	Eudora OSE 1	5718	C:\Windows\System32\Sysprep\Panther\
diagerr.xml	Extensible Markup Language	Eudora OSE 1	44109	C:\Windows\Panther\UnattendGC\

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