How to Fix Mtllw.dll DLL Issues and Download Updates

Last Updated: 12/02/2023
[Time to Read Article: 5 minutes]

Heidi® Materials Toolkit files, such as mtllw.dll, are considered a type of Win32 DLL (Dynamic link library) file. They are associated with the DLL file extension, developed by Autodesk, Inc. for Heidi®.

The first release in the Windows 10 Operating System for mtllw.dll was on 06/12/2007 inside Autodesk DWF Viewer 7. This file release marks the latest and most updated version from Autodesk, Inc..

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

File Analysis Provided by Jason Geater (Author)


Recommended Download: Fix mtllw.dll / Autodesk DWF Viewer-related registry issues with WinThruster.

Compatible with Windows 11, 10, 8, 7, Vista, XP and 2000

Average User Rating

 

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


File Overview


General Information
File Name: mtllw.dll
File Extension: DLL file extension
Description: Heidi® Materials Toolkit
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: Autodesk, Inc.
Software Program: Heidi®
Legal Copyright: Copyright (c) 1982-2004 by Autodesk, Inc.
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x2929
Code Size: 7680


What are mtllw.dll Error Messages?


Dynamic Link Library mtllw.dll Errors

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

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



How to Fix mtllw.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 mtllw.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):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the mtllw.dll error, please proceed to the Step 2 below.

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

You can uninstall Autodesk DWF Viewer software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Autodesk DWF Viewer 7 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Autodesk DWF Viewer software.

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

Autodesk DWF Viewer 7

Autodesk, Inc.

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 mtllw.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the mtllw.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.



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

  1. Locate your Windows operating system version in the list of below "Download mtllw.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Autodesk DWF Viewer folder location:
    Windows 10: C:\Program Files (x86)\Autodesk\Autodesk DWF Viewer\EMap\
    Windows 10: C:\Program Files (x86)\Autodesk\Autodesk DWF Viewer\EComposite\
  4. 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 mtllw.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.



Download mtllw.dll Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying mtllw.dll to your appropriate Windows system directory. Autodesk, Inc. typically does not release Autodesk DWF Viewer 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 mtllw.dll and all other DLL files for Autodesk DWF Viewer. 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


Files Related to mtllw.dll


DLL Files Related to mtllw.dll

File Name Description Software Program (Version) File Size (bytes) File Location
microsoft.office.irm.p... Microsoft PDF IRM Protector microsoft.office.irm.pdfprotector (1.0.3557.0524) 348248 C:\Users\Bill Gates\AppData\Local\
OneDriveTelemetryStabl... OneDriveTelemetry Stable DLL Microsoft OneDrive (19.192.0926.0012) 1343848 C:\Users\Tester\AppData\Local\
api-ms-win-core-namedp... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11112 C:\Windows\inf\
PresentationCore.ni.dll Dynamic Link Library Autodesk DWF Viewer 7 12260864 C:\Program Files\Common Files\microsoft shared\...
qtquickextrasplugin.dll C++ Application Development Framework Qt5 (5.11.1.0) 68152 C:\Users\Tester\AppData\Local\

Other Files Related to mtllw.dll

File Name Description Software Program (Version) File Size (bytes) File Location
CBS.log Log AutoCAD 2019 997404 C:\Windows\Logs\CBS\
volsnap.PNF Precompiled INF AutoCAD 2019 5164 C:\Windows\inf\
WmiApRpl.ini Windows Initialization Autodesk DWF Viewer 7 29736 C:\Windows\inf\WmiApRpl\0009\
WmiApRpl.ini Windows Initialization DWG TrueView 2019 29736 C:\Windows\inf\WmiApRpl\0009\
WmiApRpl.h C/C++/Objective-C Header DWG TrueView 2019 3444 C:\Windows\System32\wbem\Performance\


RocketPC

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.