Cerulean Studios Trillian DLL Mso99Lwin32client.dll

How to Fix Issues with Mso99Lwin32client.dll (Free Download)

Last Updated: 11/25/2023
[Time Required for Reading: 3.5 minutes]

DLL files such as Mso99Lwin32client.dll are categorized as Win64 DLL (Dynamic link library) files. As a Microsoft Office 2016 component file, it was created for use in Microsoft Office 2016 by Cerulean Studios.

Mso99Lwin32client.dll was first developed on 07/29/2015 in the Windows 10 Operating System for Windows 10. The latest file version for Trillian 6.1.0.17 is v16.0.7315.1000 released on 09/04/2019.

Below, you find comprehensive file information, instructions for simple DLL file troubleshooting, and list of free Mso99Lwin32client.dll downloads for each available file version.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	Mso99Lwin32client.dll
File Extension:	DLL file extension
Description:	Microsoft Office 2016 component
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 Office 2016
Developer:	Cerulean Studios
Software:	Trillian
Software Version:	6.1.0.17

File Details
Character Set:	Windows, Latin1
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x98930
Code Size:	5756416

View Other Mso99Lwin32client.dll Information

File Info	Description
File Size:	7.9 MB
File Modification Date/Time:	2019:10:04 17:45:03+00:00
File Type:	Win64 DLL
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	2016:08:15 15:18:50+00:00
PE Type:	PE32+
Linker Version:	14.0
Code Size:	5756416
Initialized Data Size:	2657792
Uninitialized Data Size:	0
Entry Point:	0x98930
OS Version:	6.1
Image Version:	0.0
Subsystem Version:	6.1
Subsystem:	Windows command line
File Version Number:	16.0.7315.1000
Product Version Number:	16.0.7315.0
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:	Windows, Latin1
Company Name:	Microsoft Corporation
File Description:	Microsoft Office 2016 component
File Version:	16.0.7315.1000
Internal Name:	Mso99LWin32Client
Product Name:	Microsoft Office 2016
Product Version:	16.0.7315.1000
Legal Trademarks 1:	Microsoft® is a registered trademark of Microsoft Corporation.
Legal Trademarks 2:	Windows® is a registered trademark of Microsoft Corporation.

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

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What are Mso99Lwin32client.dll Error Messages?

Dynamic Link Library Mso99Lwin32client.dll Errors

Mso99Lwin32client.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like Mso99Lwin32client.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like explorer.exe - to follow. These files were created so that multiple programs (eg. Trillian) could share the same Mso99Lwin32client.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 Mso99Lwin32client.dll is attempted to be loaded either when Trillian is starting up, or in some cases already running. Some of the most common Mso99Lwin32client.dll errors include:

Access Violation at address - Mso99Lwin32client.dll.
Mso99Lwin32client.dll could not be found.
Cannot find C:\Program Files\WindowsApps\Deleted\Microsoft.MicrosoftOfficeHub_17.9230.1700.0_x64__8wekyb3d8bbwe36cf0e57-31e7-4aed-a119-5fb333434dfa\VFS\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\Mso99Lwin32client.dll.
Cannot register Mso99Lwin32client.dll.
Cannot start Trillian. A required component is missing: Mso99Lwin32client.dll. Please install Trillian again.
Failed to load Mso99Lwin32client.dll.
The application has failed to start because Mso99Lwin32client.dll was not found.
The file Mso99Lwin32client.dll is missing or corrupt.
This application failed to start because Mso99Lwin32client.dll was not found. Re-installing the application may fix this problem.

Your Mso99Lwin32client.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Trillian), or deleted by a malware infection. Furthermore, Mso99Lwin32client.dll file corruption could be caused from a power outage when loading Trillian, system crash while loading Mso99Lwin32client.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 Mso99Lwin32client.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 Mso99Lwin32client.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 Mso99Lwin32client.dll error, please proceed to the Step 2 below.

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

You can uninstall Trillian 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 Trillian 6.1.0.17 and click "Uninstall"
Follow the prompts for uninstallation.

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

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

Trillian 6.1.0.17

Cerulean Studios

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 Mso99Lwin32client.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 Mso99Lwin32client.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 Mso99Lwin32client.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 Mso99Lwin32client.dll file version. We maintain a comprehensive database of 100% malware-free Mso99Lwin32client.dll files for every applicable version of Trillian. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download Mso99Lwin32client.dll Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Trillian folder location:

Windows 10: C:\Program Files\WindowsApps\Deleted\Microsoft.MicrosoftOfficeHub_17.9230.1700.0_x64__8wekyb3d8bbwe36cf0e57-31e7-4aed-a119-5fb333434dfa\VFS\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\
Windows 10: C:\Program Files\WindowsApps\Deleted\Microsoft.MicrosoftOfficeHub_17.9230.1700.0_x64__8wekyb3d8bbweaf61a6f8-7928-4e73-b214-9efd9cba4c9c\VFS\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\
Windows 10: C:\Windows\InfusedApps\Packages\Microsoft.MicrosoftOfficeHub_17.8010.5926.0_x86__8wekyb3d8bbwe\VFS\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\
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 Mso99Lwin32client.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 Mso99Lwin32client.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying Mso99Lwin32client.dll to your appropriate Windows system directory. Cerulean Studios typically does not release Trillian 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 Mso99Lwin32client.dll and all other DLL files for Trillian. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Trillian 6.1.0.17

File Name

Software Version

File Version

Architecture

Mso99Lwin32client.dll

16.0.7315.0

16.0.7315.1000

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft Office 2016
Software Version:	16.0.7315.0
File Version:	16.0.7315.1000
File Size:	8307968
File Date:	10/04/2019
MD5 Checksum:	f5dd5949f12e6b79246e685f353e7637
SHA1 Checksum:	7e7142f995cb7e246c819e207f0adc959763cd4d
SHA256 Checksum:	b7030399c38e41dff0d0b2569f289390472777f8c720291526f4d22eb65de4db
CRC32:
File Directory Location:	C:\Program Files\WindowsApps\Deleted\Microsoft ...

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	0.0
Initialized Data Size:	2657792
Linker Version:	14.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.1
File Modification Date/Time:	10/04/2019

Spybot - Search & Destroy 2.4.40

File Name

Software Version

File Version

Architecture

Mso99Lwin32client.dll

16.0.7315.0

16.0.7315.1000

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft Office 2016
Software Version:	16.0.7315.0
File Version:	16.0.7315.1000
File Size:	8307968
File Date:	10/04/2019
MD5 Checksum:	f5dd5949f12e6b79246e685f353e7637
SHA1 Checksum:	7e7142f995cb7e246c819e207f0adc959763cd4d
SHA256 Checksum:	b7030399c38e41dff0d0b2569f289390472777f8c720291526f4d22eb65de4db
CRC32:
File Directory Location:	C:\Program Files\WindowsApps\Deleted\Microsoft ...

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	0.0
Initialized Data Size:	2657792
Linker Version:	14.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.1
File Modification Date/Time:	10/04/2019

Windows 10

File Name

Software Version

File Version

Architecture

Mso99Lwin32client.dll

16.0.8010.0

16.0.8010.5926

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft Office 2016
Software Version:	16.0.8010.0
File Version:	16.0.8010.5926
File Size:	5061832
File Date:	03/18/2017
MD5 Checksum:	aa2d76e39135c40f9d7f5a03a24cedba
SHA1 Checksum:	2046cde2343b13193c95da1b86dee13dba4961c4
SHA256 Checksum:	e56a6a7aa59bcab113cb1d4975d31cf0a7a6fae3c6ed34364b3820417cfbfd96
CRC32:
File Directory Location:	C:\Windows\InfusedApps\Packages\Microsoft.Micr ...

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	1378304
Linker Version:	14.0
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

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Files Related to Mso99Lwin32client.dll

DLL Files Related to Mso99Lwin32client.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
mscoreei.dll	Dynamic Link Library	Trillian 6.1.0.17	47543	C:\Windows\System32\WDI\{86432a0b-3c7d-4ddf-a89...
rtmpltfm.dll	Microsoft Real Time Media Stack	Microsoft® Skype Media Stack (2018.11.1.6)	13517312	C:\Windows\PolicyDefinitions\
cmifw.dll	Dynamic Link Library	Trillian 6.1.0.17	12	C:\Windows\inf\
Microsoft.GroupPolicy....	Dynamic Link Library	Trillian 6.1.0.17	10240	C:\Windows\System32\wbem\Performance\
MessagingApplication.dll	Dynamic Link Library	Trillian 6.1.0.17	9886720	C:\Windows\

Other Files Related to Mso99Lwin32client.dll

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
CbsMsg.dll	Dynamic Link Library	Trillian 6.1.0.17	12	C:\Windows\WinSxS\amd64_microsoft-windows-servi...
CBS.log	Log	Trillian 6.1.0.17	2411494	C:\Windows\Logs\CBS\
wgl4_boot.ttf	TrueType Font	Trillian 6.1.0.17	49090	C:\$WINDOWS.~BT\boot\fonts\
kor_boot.ttf	TrueType Font	Trillian 6.1.0.17	2372998	C:\$WINDOWS.~BT\boot\fonts\
chs_boot.ttf	TrueType Font	Trillian 6.1.0.17	3695718	C:\$WINDOWS.~BT\efi\microsoft\boot\fonts\

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