Totusoft LAN Speed Test EXE LST_Helper1.exe

How to Download LST_Helper1.exe and Fix Runtime Error Messages

Last Updated: 11/24/2023
[Average Read Time: 4.5 minutes]

LST_Helper1.exe uses the EXE file extension, which is more specifically known as a Windows Executable file. It is classified as a Win32 EXE (Executable application) file, created for LST_Helper1 by Totusoft.

The first version of LST_Helper1.exe was released for the Windows 10 Operating System on 12/07/2018 inside LAN Speed Test 4.3.1. This file marks the latest update from Totusoft, according to our records.

Continue reading below to discover detailed file information, EXE file troubleshooting, and free downloads of several versions of LST_Helper1.exe.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	LST_Helper1.exe
File Extension:	EXE file extension
Object File Type:	Executable application
File Type:	Executable Application
Description:	Windows Executable
File Operating System:	Win32
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Totusoft, Inc.
Software Program:	LST_Helper1
Legal Copyright:	Totusoft, Inc.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x0017
Entry Point:	0x1640
Code Size:	65024

View Other LST_Helper1.exe Information

File Info	Description
File Size:	1060 kB
File Modification Date/Time:	2019:12:30 05:34:13+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2018:12:05 03:47:38+00:00
PE Type:	PE32
Linker Version:	14.0
Code Size:	65024
Initialized Data Size:	333312
Uninitialized Data Size:	0
Entry Point:	0x1640
OS Version:	5.1
Image Version:	0.0
Subsystem Version:	5.1
Subsystem:	Windows command line
File Version Number:	4.3.1.0
Product Version Number:	4.3.1.0
File Flags Mask:	0x0017
File Flags:	(none)
File OS:	Win32
Object File Type:	Executable application
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Totusoft, Inc.
File Description:
File Version:	4.3.1.0
Internal Name:
Legal Copyright:	Totusoft, Inc.
Product Name:	LST_Helper1
Product Version:	4.3.1

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

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What are LST_Helper1.exe Error Messages?

LST_Helper1.exe Runtime Errors

Runtime errors are LAN Speed Test errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when LST_Helper1.exe is attempted to be loaded either when LAN Speed Test is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using LAN Speed Test.

In most cases, LST_Helper1.exe runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these LST_Helper1.exe error messages mean that LAN Speed Test was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, LAN Speed Test will be unable to start without resolving these errors.

Some of the most common LST_Helper1.exe errors include:

LST_Helper1.exe - Bad Image.
LST_Helper1.exe Application Error.
LST_Helper1.exe could not be found.
LST_Helper1.exe could not be installed.
LST_Helper1.exe could not be launched. Class not registered.
LST_Helper1.exe could not be started.
LST_Helper1.exe failed to initialize properly.
LST_Helper1.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
LST_Helper1.exe is not a valid Win32 application.
LST_Helper1.exe is not running.
Cannot find LST_Helper1.exe.
Error starting program: LST_Helper1.exe.
Faulting Application Path: LST_Helper1.exe.
The file LST_Helper1.exe is missing or corrupt.
Windows failed to start - LST_Helper1.exe.

System Error

The program can’t start because LST_Helper1.exe is missing from your computer. Try reinstalling the program to fix this problem.

Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

Finding the source of the LST_Helper1.exe error is key to properly resolving these errors. Although most of these EXE errors affecting LST_Helper1.exe will happen during startup, occasionally you will encounter a runtime error while using LST_Helper1. This can occur due to poor programming on behalf of Totusoft, Inc., conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of LST_Helper1.exe errors can occur if it has been accidentally moved, deleted, or corrupted by 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 LST_Helper1.exe 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 LST_Helper1.exe 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 LST_Helper1.exe error, please proceed to the Step 2 below.

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

You can uninstall LAN Speed Test 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 LAN Speed Test 4.3.1 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall LAN Speed Test software.

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

LAN Speed Test 4.3.1

Totusoft

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 LST_Helper1.exe 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 LST_Helper1.exe 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 LST_Helper1.exe 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 LST_Helper1.exe file version. We maintain a comprehensive database of 100% malware-free LST_Helper1.exe files for every applicable version of LAN Speed Test. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download LST_Helper1.exe Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate LAN Speed Test folder location:

Windows 10: C:\Program Files (x86)\LAN Speed Test v4\
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 LST_Helper1.exe 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 LST_Helper1.exe Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying LST_Helper1.exe to your appropriate Windows system directory. Totusoft typically does not release LAN Speed Test EXE 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 LST_Helper1.exe and all other EXE files for LAN Speed Test. An incorrectly installed EXE file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

LAN Speed Test 4.3.1

File Name

Software Version

File Version

Architecture

LST_Helper1.exe

4.3.1.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	LST_Helper1
Software Version:	4.3.1.0
File Version:	4.3.1.0
File Size:	1085536
File Date:	12/30/2019
MD5 Checksum:	88a17df1c81ed0dff5703758123d4cd5
SHA1 Checksum:	7bc1f93305517f7200627e4353e7a4b0ab1a256a
SHA256 Checksum:	43f039b7540c314aebcf83fc53444eb2ae10edcb08f0b52a148b2857a5da6f13
CRC32:
File Directory Location:	C:\Program Files (x86)\LAN Speed Test v4\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	0.0
Initialized Data Size:	333312
Linker Version:	14.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	5.1
File Modification Date/Time:	12/30/2019

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Files Related to LST_Helper1.exe

EXE Files Related to LST_Helper1.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
LAN_SpeedTest_Setup.exe	LAN Speed Test Setup	LAN Speed Test (4.3.1)	17875200	C:\Windows\Prefetch\
OneDriveSetup.exe	Microsoft OneDrive (32 bit) Setup	Microsoft OneDrive (19.192.0926.0012)	35086184	C:\Windows\Microsoft.NET\Framework\v4.0.30319\
LST_Helper1.exe	Windows Executable	LST_Helper1 (4.3.1)	1085536	C:\Windows\Prefetch\
OneDriveUpdaterService...	Updater Service	Microsoft OneDrive (19.192.0926.0012)	2487144	C:\Users\Tester\AppData\Local\
FileSyncConfig.exe	Microsoft OneDrive Configuration Application	Microsoft OneDrive (19.192.0926.0012)	364392	C:\Users\Tester\AppData\Local\Microsoft\Windows\

Other Files Related to LST_Helper1.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
api-ms-win-core-heap-l...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	11112	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
diagwrn.xml	Extensible Markup Language	LAN Speed Test 4.3.1	44683	C:\Windows\Panther\UnattendGC\
api-ms-win-core-synch-...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	13160	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
api-ms-win-core-synch-...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.10586.15)	20672	C:\Program Files (x86)\LAN Speed Test v4\
api-ms-win-core-memory...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	11624	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...

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