Microsoft Office DLL UCS20.DLL

3 Steps to Download and Fix UCS20.DLL DLL Errors

Last Updated: 11/25/2023
[Time to Read Article: 5 minutes]

UCS20.DLL uses the DLL file extension, which is more specifically known as a Microsoft Office 2003 component file. It is classified as a Win32 DLL (Dynamic link library) file, created for Microsoft Office 2003 by Microsoft.

The initial introduction of UCS20.DLL released in Office XP was for Windows XP on 05/31/2001. The most recent version [file version 11.0.5510] was introduced on 08/19/2003 for Office 2003.

Please continue reading to find your correct UCS20.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:	UCS20.DLL
File Extension:	DLL file extension
Description:	Microsoft Office 2003 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 2003
Legal Copyright:	Copyright © 1983-2003 Microsoft Corporation. All rights reserved.

File Details
Character Set:	Unknown (041E)
Language Code:	Neutral
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x11a52
Code Size:	73728

View Other UCS20.DLL Information

File Info	Description
File Size:	115 kB
File Modification Date/Time:	2017:05:10 20:58:04+00:00
File Inode Change Date/Time:	2017:11:05 07:01:42+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2003:07:12 09:04:37+00:00
PE Type:	PE32
Linker Version:	7.10
Code Size:	73728
Initialized Data Size:	221184
Uninitialized Data Size:	0
Entry Point:	0x11a52
OS Version:	4.0
Image Version:	0.0
Subsystem Version:	4.0
Subsystem:	Windows GUI
File Version Number:	11.0.5510.0
Product Version Number:	11.0.5510.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	Neutral
Character Set:	Unknown (041E)
Company Name:	Microsoft Corporation
File Description:	Microsoft Office 2003 component
File Version:	11.0.5510
Internal Name:	ucs20
Legal Copyright:	Copyright © 1983-2003 Microsoft Corporation. All rights reserved.
Original Filename:	ucs20.DLL
Product Name:	Microsoft Office 2003
Product Version:	11.0.5510
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.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

What are UCS20.DLL Error Messages?

Dynamic Link Library UCS20.DLL Errors

UCS20.DLL is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like UCS20.DLL, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like wisptis.exe - to follow. These files were created so that multiple programs (eg. Office) could share the same UCS20.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 UCS20.DLL is attempted to be loaded either when Office is starting up, or in some cases already running. Some of the most common UCS20.DLL errors include:

Access Violation at address - UCS20.DLL.
UCS20.DLL could not be found.
Cannot find C:\Program Files\Common Files\Microsoft Shared\OFFICE11\UCS20.DLL.
Cannot register UCS20.DLL.
Cannot start Office. A required component is missing: UCS20.DLL. Please install Office again.
Failed to load UCS20.DLL.
The application has failed to start because UCS20.DLL was not found.
The file UCS20.DLL is missing or corrupt.
This application failed to start because UCS20.DLL was not found. Re-installing the application may fix this problem.

Your UCS20.DLL file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Office), or deleted by a malware infection. Furthermore, UCS20.DLL file corruption could be caused from a power outage when loading Office, system crash while loading UCS20.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.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

How to Fix UCS20.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 UCS20.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 UCS20.DLL error, please proceed to the Step 2 below.

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

You can uninstall Office 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 Office 2003 and click "Uninstall"
Follow the prompts for uninstallation.

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

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

Office 2003

Microsoft Corporation

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 UCS20.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 UCS20.DLL error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

If Those Steps Fail: Download and Replace Your UCS20.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 UCS20.DLL file version. We maintain a comprehensive database of 100% malware-free UCS20.DLL files for every applicable version of Office. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download UCS20.DLL Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Office folder location:

Windows XP: C:\Program Files\Common Files\Microsoft Shared\Office10\
Windows XP: C:\Program Files\Common Files\Microsoft Shared\OFFICE11\
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 XP.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve UCS20.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.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Download UCS20.DLL Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying UCS20.DLL to your appropriate Windows system directory. Microsoft typically does not release Office 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 UCS20.DLL and all other DLL files for Office. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Office XP

File Name

Software Version

File Version

Architecture

UCS20.DLL

2.0.0.2418

2.0.2418

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows XP
Software:	UCS20.DLL
Software Version:	2.0.0.2418
File Version:	2.0.2418
File Size:	180224
File Date:	05/10/2017
MD5 Checksum:	4f528e041f063b87cc0342c1f6a8c76b
SHA1 Checksum:	4eb138f6be6933a89e85a63d0fd26f390b353506
SHA256 Checksum:	62b6c57fa024c72bb14381e03d83f29690a94d9996296439d527610807d293bb
CRC32:
File Directory Location:	C:\Program Files\Common Files\Microsoft Shared ...

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	229376
Linker Version:	6.20
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	4.0
File Modification Date/Time:	05/10/2017

Office 2003

File Name

Software Version

File Version

Architecture

UCS20.DLL

11.0.5510.0

11.0.5510

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows XP
Software:	Microsoft Office 2003
Software Version:	11.0.5510.0
File Version:	11.0.5510
File Size:	117304
File Date:	05/10/2017
MD5 Checksum:	84fc839879d57c3de4cd6043b1a4a812
SHA1 Checksum:	8546f63f52c0ad35ad3cbcd09a04c90de908b819
SHA256 Checksum:	6b47dbff18361c134b5f51c29f7227a47427e4162865ca6e94fd3a8175e6dc2b
CRC32:
File Directory Location:	C:\Program Files\Common Files\Microsoft Shared ...

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	221184
Linker Version:	7.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	4.0
File Modification Date/Time:	05/10/2017

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Files Related to UCS20.DLL

DLL Files Related to UCS20.DLL

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OCLTINT.DLL	Microsoft SharePoint Discussions Resources	Microsoft SharePoint (11.0.5510)	121400	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
RTFHTML.DLL	Outlook RTF/HTML Converter	Microsoft Office Outlook (12.0.4518.1014)	408880	C:\Windows\SysWOW64\
excelpluginshell.resou...	Dynamic Link Library	Office 2016	12984	C:\Users\Tester\AppData\Local\Microsoft\Windows...
MSTHES3.DLL	Microsoft Thesaurus dll	Microsoft® Thesaurus (9, 0, 0, 980608)	49152	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
Microsoft.Office.Tools...	Microsoft.Office.Tools.dll	Microsoft (R) Visual Studio (R) 2010 (10.0.40820.0)	16048	C:\Users\Tester\AppData\Local\Microsoft\Windows...

Other Files Related to UCS20.DLL

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 8	5957	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	16142	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_policy_v1.xsd	XML Schema Definition	Windows Vista	6446	C:\Windows\L2Schemas\

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Browse Other File Extensions in Alphabetical Order : # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

You are downloading trial software. The purchase of a one-year software subscription at the price of $29.97 USD is required to unlock all software features. Subscription auto-renews at the end of the term (Learn more). By clicking the "Start Download" button above and installing "Software", I acknowledge I have read and agree to the Solvusoft End User License Agreement and Privacy Policy.