Trend Micro Trend Micro Antivirus Plus Security OLD tmwlchk.dll.old

Repair Tmwlchk.dll.old Issues (How to Download and Fix)

Last Updated: 12/01/2023
[Time to Read: ~3-5 minutes]

The development of Trend Micro AEGIS by Trend Micro prompted the latest creation of tmwlchk.dll.old. It is also known as a Trend Micro White Listing Module file (file extension OLD), which is classified as a type of Win64 DLL (Driver) file.

The initial introduction of tmwlchk.dll.old released in Trend Micro Maximum Security 16 was for Windows 10 on 09/10/2019. The most recent release for Trend Micro Antivirus Plus Security 16 launched on 09/10/2019 [version 9.0.0.1155 release].

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

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	tmwlchk.dll.old
File Extension:	OLD file extension
Description:	Trend Micro White Listing Module
Object File Type:	Driver
File Operating System:	Windows NT
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Trend Micro, Inc.
Software Program:	Trend Micro AEGIS
Legal Copyright:	Copyright (C) 2019 Trend Micro Incorporated. All rights reserved.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	Private build, Special build
File Flags Mask:	0x003f
Entry Point:	0x568ec
Code Size:	359936

View Other tmwlchk.dll.old Information

File Info	Description
File Size:	540 kB
File Modification Date/Time:	2019:11:25 13:14:20+00:00
File Type:	Win64 DLL
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	2019:07:24 07:10:09+00:00
PE Type:	PE32+
Linker Version:	14.0
Code Size:	359936
Initialized Data Size:	183808
Uninitialized Data Size:	0
Entry Point:	0x568ec
OS Version:	6.0
Image Version:	0.0
Subsystem Version:	6.0
Subsystem:	Windows command line
File Version Number:	9.0.0.1155
Product Version Number:	9.0.0.1155
File Flags Mask:	0x003f
File Flags:	Private build, Special build
File OS:	Windows NT
Object File Type:	Driver
File Subtype:	8
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Trend Micro, Inc.
File Description:	Trend Micro White Listing Module
File Version:	9.0.0.1155
Internal Name:	tmwlchk.dll
Legal Copyright:	Copyright (C) 2019 Trend Micro Incorporated. All rights reserved.
Product Name:	Trend Micro AEGIS
Product Version:	9.0
Legal Trademarks:	Copyright (C) 2019 Trend Micro Incorporated. All rights reserved.
Private Build:	Build 1155 - 07/24/2019

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

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What are tmwlchk.dll.old Error Messages?

General tmwlchk.dll.old Runtime Errors

tmwlchk.dll.old file errors often occur during the startup phase of Trend Micro Antivirus Plus Security, but can also occur while the program is running. These types OLD errors are also known as “runtime errors” because they occur while Trend Micro Antivirus Plus Security is running. Here are some of the most common tmwlchk.dll.old runtime errors:

tmwlchk.dll.old could not be found.
tmwlchk.dll.old error.
tmwlchk.dll.old failed to load.
Error loading tmwlchk.dll.old.
Failed to register tmwlchk.dll.old / Cannot register tmwlchk.dll.old.
Runtime Error - tmwlchk.dll.old.
The file tmwlchk.dll.old is missing or corrupt.

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Program Files\Trend Micro\AMSP\resource\engine\c2t1090519040l1p5889r1o1\9.0.1155\tmwlchk.dll.old

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Most OLD errors are due to missing or corrupt files. Your tmwlchk.dll.old file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Trend Micro Antivirus Plus Security), or deleted by a malware infection. Furthermore, tmwlchk.dll.old file corruption could be caused from a power outage when loading Trend Micro Antivirus Plus Security, system crash while loading or saving tmwlchk.dll.old, bad sectors on your storage media (usually your primary hard drive), or 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 tmwlchk.dll.old 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 tmwlchk.dll.old 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 tmwlchk.dll.old error, please proceed to the Step 2 below.

Step 2: If recently installed Trend Micro Antivirus Plus Security (or related software), uninstall then try reinstalling Trend Micro Antivirus Plus Security software.

You can uninstall Trend Micro Antivirus Plus Security 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 Trend Micro Antivirus Plus Security 16 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Trend Micro Antivirus Plus Security software.

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

Trend Micro Antivirus Plus Security 16

Trend Micro

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 tmwlchk.dll.old 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 tmwlchk.dll.old 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 tmwlchk.dll.old 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 tmwlchk.dll.old file version. We maintain a comprehensive database of 100% malware-free tmwlchk.dll.old files for every applicable version of Trend Micro Antivirus Plus Security. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download tmwlchk.dll.old Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Trend Micro Antivirus Plus Security folder location:

Windows 10: C:\Program Files\Trend Micro\AMSP\resource\engine\c2t1090519040l1p5889r1o1\9.0.1155\
Windows 10: C:\Program Files\Trend Micro\AMSP\resource\engine\c2t1090519040l1p5889r1o1\9.0.1155\
Windows 10: C:\Program Files\Trend Micro\AMSP\resource\engine\c2t1090519040l1p5889r1o1\9.0.1155\
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 tmwlchk.dll.old 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 tmwlchk.dll.old Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying tmwlchk.dll.old to your appropriate Windows system directory. Trend Micro typically does not release Trend Micro Antivirus Plus Security OLD 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 tmwlchk.dll.old and all other OLD files for Trend Micro Antivirus Plus Security. An incorrectly installed OLD file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Trend Micro Antivirus Plus Security 16

File Name

Software Version

File Version

Architecture

tmwlchk.dll.old

9.0.0.1155

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Trend Micro AEGIS
Software Version:	9.0.0.1155
File Version:	9.0.0.1155
File Size:	552600
File Date:	11/25/2019
MD5 Checksum:	f953e28b2757f9ac5684de8a59b22e4a
SHA1 Checksum:	be02287595de22a972bf25e990a7a5707038ab66
SHA256 Checksum:	526c4e596af3882a1ecafba734fab6eb397762c97cf89c1441044fb233535a48
CRC32:
File Directory Location:	C:\Program Files\Trend Micro\AMSP\resource\eng ...

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	0.0
Initialized Data Size:	183808
Linker Version:	14.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.0
File Modification Date/Time:	11/25/2019

Trend Micro Internet Security 16

File Name

Software Version

File Version

Architecture

tmwlchk.dll.old

9.0.0.1155

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Trend Micro AEGIS
Software Version:	9.0.0.1155
File Version:	9.0.0.1155
File Size:	552600
File Date:	11/25/2019
MD5 Checksum:	f953e28b2757f9ac5684de8a59b22e4a
SHA1 Checksum:	be02287595de22a972bf25e990a7a5707038ab66
SHA256 Checksum:	526c4e596af3882a1ecafba734fab6eb397762c97cf89c1441044fb233535a48
CRC32:
File Directory Location:	C:\Program Files\Trend Micro\AMSP\resource\eng ...

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	0.0
Initialized Data Size:	183808
Linker Version:	14.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.0
File Modification Date/Time:	11/25/2019

Trend Micro Maximum Security 16

File Name

Software Version

File Version

Architecture

tmwlchk.dll.old

9.0.0.1155

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Trend Micro AEGIS
Software Version:	9.0.0.1155
File Version:	9.0.0.1155
File Size:	552600
File Date:	11/25/2019
MD5 Checksum:	f953e28b2757f9ac5684de8a59b22e4a
SHA1 Checksum:	be02287595de22a972bf25e990a7a5707038ab66
SHA256 Checksum:	526c4e596af3882a1ecafba734fab6eb397762c97cf89c1441044fb233535a48
CRC32:
File Directory Location:	C:\Program Files\Trend Micro\AMSP\resource\eng ...

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	0.0
Initialized Data Size:	183808
Linker Version:	14.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.0
File Modification Date/Time:	11/25/2019

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Files Related to tmwlchk.dll.old

OLD Files Related to tmwlchk.dll.old

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
Disclmr_tw.txt.old	Backup Archive	Trend Micro Antivirus Plus Security 16	284	C:\Program Files\WindowsApps\Microsoft.BingWeat...
TmAMSIProvider.dll.old	Trend Micro AMSI Provider Module	None (8.50)	189304	C:\Program Files\WindowsApps\Deleted\Microsoft....
Tmopcfscan.dll.old	Trend Micro String Scan Utility Module	Trend Micro Osprey (5.0)	400024	C:\Program Files\WindowsApps\Microsoft.GetHelp_...
tmtd64.ptn.old	Backup Archive	Trend Micro Antivirus Plus Security 16	189562	C:\Users\Tester\AppData\Local\Microsoft\OneDrive\
tmsa64.dll.old	TMSAEng Dynamic Link Library	SALineup (8.1)	4150264	C:\Users\Tester\AppData\Local\Microsoft\OneDrive\

Other Files Related to tmwlchk.dll.old

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
setupact.log	Log	Trend Micro Maximum Security 16	62521	C:\Windows\Panther\UnattendGC\
WmiApRpl.h	C/C++/Objective-C Header	Trend Micro Internet Security 16	3444	C:\Windows\System32\wbem\Performance\
api-ms-win-core-sysinf...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.14393.33)	19648	C:\Program Files\Trend Micro\AMSP\
diagwrn.xml	Extensible Markup Language	Trend Micro Internet Security 16	44683	C:\Windows\Panther\UnattendGC\
diagwrn.xml	Extensible Markup Language	Trend Micro Antivirus Plus Security 16	44683	C:\Windows\Panther\UnattendGC\

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