Microsoft Microsoft Visio DLL UMLSYS.DLL

Download UMLSYS.DLL and Fix DLL Errors

Last Updated: 12/15/2024
[Time to Read: ~3-5 minutes]

UML system files such as UMLSYS.DLL utilize the DLL file extension. This file is considered a Win64 DLL (Dynamic link library) file, and was first created by Microsoft for the Microsoft Office 2010 software package.

The initial introduction of UMLSYS.DLL released in Microsoft Visio Premium 2010 1 was for Windows 10 on 05/04/2010. The latest file version for Microsoft Visio 14 is v14.0.4750.1000 released on 02/07/2011.

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

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	UMLSYS.DLL
File Extension:	DLL file extension
Description:	UML system
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 2010
Legal Copyright:	© 2010 Microsoft Corporation. All rights reserved.

File Details
Character Set:	Windows, Latin1
Language Code:	Neutral
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x688a8
Code Size:	466432

View Other UMLSYS.DLL Information

File Info	Description
File Size:	790 kB
File Modification Date/Time:	2020:03:04 16:33:06+00:00
File Type:	Win64 DLL
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	2010:02:28 12:09:18+00:00
PE Type:	PE32+
Linker Version:	9.0
Code Size:	466432
Initialized Data Size:	336896
Uninitialized Data Size:	0
Entry Point:	0x688a8
OS Version:	5.2
Image Version:	0.0
Subsystem Version:	5.2
Subsystem:	Windows GUI
File Version Number:	14.0.4750.1000
Product Version Number:	14.0.4750.0
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:	Windows, Latin1
Company Name:	Microsoft Corporation
File Description:	UML system
File Version:	14.0.4750.1000
Internal Name:	UMLSYS.DLL
Legal Copyright:	© 2010 Microsoft Corporation. All rights reserved.
Product Name:	Microsoft Office 2010
Product Version:	14.0.4750.1000
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 UMLSYS.DLL Error Messages?

Dynamic Link Library UMLSYS.DLL Errors

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

Access Violation at address - UMLSYS.DLL.
UMLSYS.DLL could not be found.
Cannot find C:\Program Files\Microsoft Office\Office14\UMLSYS.DLL.
Cannot register UMLSYS.DLL.
Cannot start Microsoft Visio. A required component is missing: UMLSYS.DLL. Please install Microsoft Visio again.
Failed to load UMLSYS.DLL.
The application has failed to start because UMLSYS.DLL was not found.
The file UMLSYS.DLL is missing or corrupt.
This application failed to start because UMLSYS.DLL was not found. Re-installing the application may fix this problem.

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

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

You can uninstall Microsoft Visio 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 Microsoft Visio 14 and click "Uninstall"
Follow the prompts for uninstallation.

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

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

Microsoft Visio 14

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

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

Windows 10: C:\Program Files (x86)\Microsoft Office\Office14\
Windows 10: C:\Program Files\Microsoft Office\Office14\
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 UMLSYS.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 UMLSYS.DLL Files (Malware-Tested 100% Clean)

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

Microsoft Visio Premium 2010 1

File Name

Software Version

File Version

Architecture

UMLSYS.DLL

14.0.4750.0

14.0.4750.1000

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft Office 2010
Software Version:	14.0.4750.0
File Version:	14.0.4750.1000
File Size:	495440
File Date:	01/27/2020
MD5 Checksum:	5f0ac112ba8a1086dbdb27bd31ad1360
SHA1 Checksum:	28bc0a3133e8dc2172be5f9fd8635941112e6d8f
SHA256 Checksum:	aa1f433561b54f68e5531155e4334d86f21d6cb708f6350ff4c549debb358fba
CRC32:
File Directory Location:	C:\Program Files (x86)\Microsoft Office\Office14\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	0.0
Initialized Data Size:	31232
Linker Version:	9.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	5.1
File Modification Date/Time:	01/27/2020

Microsoft Visio 14

File Name

Software Version

File Version

Architecture

UMLSYS.DLL

14.0.4750.0

14.0.4750.1000

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft Office 2010
Software Version:	14.0.4750.0
File Version:	14.0.4750.1000
File Size:	808784
File Date:	03/04/2020
MD5 Checksum:	5f871a12d282eee4b5ccca2eb77c2fbd
SHA1 Checksum:	5715ce4372cc93dfdc7c0fb4ce26a9704319256f
SHA256 Checksum:	f044763681bb7504a2b6892f1194afc96376fc869c6b6f2570d9b4a62bd26690
CRC32:
File Directory Location:	C:\Program Files\Microsoft Office\Office14\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	0.0
Initialized Data Size:	336896
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	5.2
File Modification Date/Time:	03/04/2020

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Files Related to UMLSYS.DLL

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hxdsui.dll	DLL satellite dei Servizi di dati di Microsoft® Help	Microsoft ® Help 2.5 (2.05.50727.4039)	19784	C:\Users\Tester\AppData\Local\Microsoft\Windows...
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EEINTL.DLL	Microsoft Equation Editor Int'l DLL	Microsoft Equation Editor (3.1)	64096	C:\Windows\System32\
Microsoft.Office.Tools...	Microsoft.Office.Tools.Excel.v9.0.dll	Microsoft (R) Visual Studio (R) 2008 (9.0.30729.4130)	438272	C:\Users\Tester\AppData\Local\Microsoft\Windows...
FPSRVUTL.DLL	Shared Web Utilities Component	Microsoft Office 2010 (14.0.4755.1000)	1651576	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...

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