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vcomp100.dll

Updated: Files Available: 40
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Download and install vcomp100.dll to fix missing or corrupted DLL errors.

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DLL Overview

Last Updated
Jan 12th, 2026
Filename
vcomp100.dll
Company
Microsoft Corporation
Product
Microsoft® Visual Studio® 2010
Description
Microsoft® C/C++ OpenMP Runtime
Architecture
x86-64 (64 bit) x86 (32 bit)
Metadata Consensus
37/40 Files 92.5%
Higher percentages indicate stronger agreement across versions. View available versions or browse repository metadata to compare differences between variants.

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About vcomp100.dll

vcomp100.dll is a DLL file (Dynamic Link Library) used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy.

Overview

What Is vcomp100.dll?

vcomp100.dll is the Microsoft Visual C++ OpenMP runtime library included with the Microsoft Visual C++ 2010 toolset. Programs compiled with Visual Studio 2010 that use OpenMP parallel processing require this DLL to manage multithreaded regions.

If vcomp100.dll is missing or damaged, applications using OpenMP may fail to launch and display errors such as:

"vcomp100.dll is missing"
"The program can't start because vcomp100.dll was not found"


What Does vcomp100.dll Do?

✔ OpenMP Parallel Runtime

vcomp100.dll provides the runtime support required for OpenMP features, including:

  • Creating and managing worker threads
  • Handling #pragma omp parallel regions
  • Synchronization, barriers, and scheduling
  • Runtime logic for parallel loops and tasks

Any Visual C++ 2010 application using OpenMP depends on this DLL.

✔ Part of Microsoft Visual C++ 2010 Redistributable

This DLL is installed with:
  • Microsoft Visual C++ 2010 Redistributable (vcredist_x86 or vcredist_x64)
  • Applications that bundle the VC++ 2010 runtime


Where Is vcomp100.dll Normally Located?

The DLL is installed in the Windows system directories by the VC++ 2010 Redistributable:

  • C:/Windows/System32/vcomp100.dll (64-bit)
  • C:/Windows/SysWOW64/vcomp100.dll (32-bit on 64-bit Windows)

Applications do not usually ship their own copy; they rely on the redistributable.


What Software Uses This DLL?

You may encounter vcomp100.dll in:

  • Scientific and engineering tools
  • Applications using multi-threaded CPU computations
  • Older games and utilities built with Visual Studio 2010
  • Custom software compiled with OpenMP enabled


Why Do vcomp100.dll Errors Occur?

✔ Missing Visual C++ 2010 Redistributable

If the required redistributable is not installed, the DLL will be absent.

✔ Corrupted or Deleted System Files

Cleaning tools or manual deletion can remove runtime DLLs.

✔ Wrong Architecture

A 64-bit app requires the 64-bit DLL; a 32-bit app requires the 32-bit version.

✔ Windows Update or Installation Issues

Incomplete updates or damaged runtimes can break VC++ 2010 dependencies.


How To Fix vcomp100.dll Errors

1. Install or Repair the Microsoft Visual C++ 2010 Redistributable

This restores the correct version of vcomp100.dll.

  1. Download vcredist_x86.exe or vcredist_x64.exe (depending on your app).
  2. Run the installer.
  3. Select Repair if already installed, or complete a new installation.
  4. Restart and relaunch the application.


2. Repair Windows System Files

If the DLL is corrupted:
sfc /scannow
Follow with DISM if needed:
DISM /Online /Cleanup-Image /RestoreHealth


3. Reinstall the Affected Application

Some programs include their own VC++ 2010 runtime. Reinstalling can restore required components.


Summary

vcomp100.dll is the OpenMP runtime library for Visual C++ 2010, required by multithreaded applications built with that toolset. Errors typically occur when the VC++ 2010 Redistributable is missing, corrupted, or mismatched.

The most reliable fix is to install or repair the VC++ 2010 Redistributable, ensure the correct architecture is present, and repair system files if needed.

File information is supported by Human Assisted Artificial Intelligence and should be used as a helpful tool. However, it is important to keep in mind that this information may not be up-to-date or entirely accurate.

Troubleshooting DLL Errors

Most errors involving vcomp100.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common and reliable ways to fix these errors.

Windows DLL Error Examples

This application has failed to start because vcomp100.dll was not found. Re-installing the application may fix this problem.
vcomp100.dll Not Found.

Fixes and Solutions

The first step in resolving DLL errors is to completely uninstall the affected software and reinstall its latest version. We know this does not always solve the problem, which is why DLLme exists. If reinstalling the application does not help, or if you are unsure which app is causing the error, follow the steps below. These are the most common solutions for fixing vcomp100.dll errors.

  • Repair Windows: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator (search for “PowerShell” in the Start menu, right-click it, and choose “Run as administrator”). This allows you to repair the Windows component store and run the System File Checker (SFC).

    Repair the Windows component store so SFC can pull clean files:

    DISM /Online /Cleanup-Image /RestoreHealth

    Scan all protected system files and automatically repair problems:

    sfc /scannow
  • Uninstall & Reinstall: On this DLL page, check the Company/Product section to identify the related app, then fully uninstall it. If you plan to continue using it, reinstall the latest version. Be sure to save or back up any important data before uninstalling. Windows or antivirus software may sometimes quarantine DLL files, especially if the DLL is unfamiliar or appears suspicious. Check your antivirus quarantine or logs to determine if this is the cause of your issue.
  • Download the DLL: Download the latest 32-bit or 64-bit version of the DLL directly from our repository using the download button above. Most users will need the 64-bit version, but if you are unsure, or if a 64-bit version is not available, you can install both the 32-bit and 64-bit DLLs. DLLme verifies DLLs that come from our admins, partners, and trusted affiliates. User-uploaded files may be verified later if a trusted source is confirmed.
  • Register the DLL: Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

    Register the DLL (you can also drag the DLL file into the window to automatically fill in its full path):

    regsvr32 "C:\path\to\vcomp100.dll"

    If you are registering a 32-bit DLL on 64-bit Windows, use the 32-bit RegSvr32:

    C:\Windows\SysWOW64\regsvr32 "C:\path\to\vcomp100.dll"

    Or open Windows Terminal/PowerShell in the DLL’s folder and run:

    regsvr32 vcomp100.dll

How to Install vcomp100.dll

To install vcomp100.dll, place the DLL file in the appropriate Windows system folder or in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both.

On 64-bit versions of Windows, place 64-bit DLL files in:

C:\Windows\System32\vcomp100.dll

Place 32-bit DLL files in:

C:\Windows\SysWOW64\vcomp100.dll

Or place the DLL file next to the application’s .exe:

C:\path\to\exe\vcomp100.dll

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  4. 10.30319.1
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