Download Opcmex.dll for Windows 10, 8.1, 8, 7, Vista and XP

Opcmex.dll download. The Opcmex.dll file is a dynamic link library for Windows 10, 8.1, 8, 7, Vista and XP. You can fix "The file Opcmex.dll is missing." and "Opcmex.dll not found." errors by downloading and installing this file from our site.

What is Opcmex.dll? What Does It Do?

The size of this dll file is 0.29 MB and its download links are healthy. It has been downloaded 480 times already.

Operating Systems Compatible with the Opcmex.dll File

How to Download Opcmex.dll File?

  1. Click on the green-colored "Download" button on the top left side of the page.
    Download process of the Opcmex.dll file's
    Step 1:Download process of the Opcmex.dll file's
  2. "After clicking the Download" button, wait for the download process to begin in the "Downloading" page that opens up. Depending on your Internet speed, the download process will begin in approximately 4 -5 seconds.

Methods for Solving Opcmex.dll

ATTENTION! Before beginning the installation of the Opcmex.dll file, you must download the file. If you don't know how to download the file or if you are having a problem while downloading, you can look at our download guide a few lines above.

Method 1: Installing the Opcmex.dll File to the Windows System Folder

  1. The file you will download is a compressed file with the ".zip" extension. You cannot directly install the ".zip" file. Because of this, first, double-click this file and open the file. You will see the file named "Opcmex.dll" in the window that opens. Drag this file to the desktop with the left mouse button. This is the file you need.
    Extracting the Opcmex.dll file from the .zip file
    Step 1:Extracting the Opcmex.dll file from the .zip file
  2. Copy the "Opcmex.dll" file and paste it into the "C:\Windows\System32" folder.
    Copying the Opcmex.dll file into the Windows/System32 folder
    Step 2:Copying the Opcmex.dll file into the Windows/System32 folder
  3. If you are using a 64 Bit operating system, copy the "Opcmex.dll" file and paste it into the "C:\Windows\sysWOW64" as well.
    NOTE! On Windows operating systems with 64 Bit architecture, the dll file must be in both the "sysWOW64" folder as well as the "System32" folder. In other words, you must copy the "Opcmex.dll" file into both folders.
    Pasting the Opcmex.dll file into the Windows/sysWOW64 folder
    Step 3:Pasting the Opcmex.dll file into the Windows/sysWOW64 folder
  4. First, we must run the Windows Command Prompt as an administrator.
    NOTE! We ran the Command Prompt on Windows 10. If you are using Windows 8.1, Windows 8, Windows 7, Windows Vista or Windows XP, you can use the same methods to run the Command Prompt as an administrator.
    1. Open the Start Menu and type in "cmd", but don't press Enter. Doing this, you will have run a search of your computer through the Start Menu. In other words, typing in "cmd" we did a search for the Command Prompt.
    2. When you see the "Command Prompt" option among the search results, push the "CTRL" + "SHIFT" + "ENTER
    3. " keys on your keyboard.
    4. A verification window will pop up asking, "Do you want to run the Command Prompt as with administrative permission?" Approve this action by saying, "Yes".
    Running the Command Prompt with administrative permission
    Step 4:Running the Command Prompt with administrative permission
  5. Let's copy the command below and paste it in the Command Line that comes up, then let's press Enter. This command deletes the Opcmex.dll file's problematic registry in the Windows Registry Editor (The file that we copied to the System32 folder does not perform any action with the file, it just deletes the registry in the Windows Registry Editor. The file that we pasted into the System32 folder will not be damaged).
    %windir%\System32\regsvr32.exe /u Opcmex.dll
    Deleting the Opcmex.dll file's problematic registry in the Windows Registry Editor
    Step 5:Deleting the Opcmex.dll file's problematic registry in the Windows Registry Editor
  6. If you have a 64 Bit operating system, after running the command above, you must run the command below. This command will clean the Opcmex.dll file's damaged registry in 64 Bit as well (The cleaning process will be in the registries in the Registry Editor< only. In other words, the dll file you paste into the SysWoW64 folder will stay as it).
    %windir%\SysWoW64\regsvr32.exe /u Opcmex.dll
    Uninstalling the Opcmex.dll file's broken registry from the Registry Editor (for 64 Bit)
    Step 6:Uninstalling the Opcmex.dll file's broken registry from the Registry Editor (for 64 Bit)
  7. You must create a new registry for the dll file that you deleted from the registry editor. In order to do this, copy the command below and paste it into the Command Line and hit Enter.
    %windir%\System32\regsvr32.exe /i Opcmex.dll
    Creating a new registry for the Opcmex.dll file
    Step 7:Creating a new registry for the Opcmex.dll file
  8. If the Windows version you use has 64 Bit architecture, after running the command above, you must run the command below. With this command, you will create a clean registry for the problematic registry of the Opcmex.dll file that we deleted.
    %windir%\SysWoW64\regsvr32.exe /i Opcmex.dll
    Creating a clean registry for the Opcmex.dll file (for 64 Bit)
    Step 8:Creating a clean registry for the Opcmex.dll file (for 64 Bit)
  9. You may see certain error messages when running the commands from the command line. These errors will not prevent the installation of the Opcmex.dll file. In other words, the installation will finish, but it may give some errors because of certain incompatibilities. After restarting your computer, to see if the installation was successful or not, try running the software that was giving the dll error again. If you continue to get the errors when running the software after the installation, you can try the 2nd Method as an alternative.

Method 2: Copying the Opcmex.dll File to the Software File Folder

  1. In order to install the dll file, you need to find the file folder for the software that was giving you errors such as "Opcmex.dll is missing", "Opcmex.dll not found" or similar error messages. In order to do that, Right-click the software's shortcut and click the Properties item in the right-click menu that appears.
    Opening the software shortcut properties window
    Step 1:Opening the software shortcut properties window
  2. Click on the Open File Location button that is found in the Properties window that opens up and choose the folder where the application is installed.
    Opening the file folder of the software
    Step 2:Opening the file folder of the software
  3. Copy the Opcmex.dll file into the folder we opened.
    Copying the Opcmex.dll file into the file folder of the software.
    Step 3:Copying the Opcmex.dll file into the file folder of the software.
  4. The installation is complete. Run the software that is giving you the error. If the error is continuing, you may benefit from trying the 3rd Method as an alternative.

Method 3: Doing a Clean Reinstall of the Software That Is Giving the Opcmex.dll Error

  1. Open the Run window by pressing the "Windows" + "R" keys on your keyboard at the same time. Type in the command below into the Run window and push Enter to run it. This command will open the "Programs and Features" window.
    appwiz.cpl
    Opening the Programs and Features window using the appwiz.cpl command
    Step 1:Opening the Programs and Features window using the appwiz.cpl command
  2. On the Programs and Features screen that will come up, you will see the list of softwares on your computer. Find the software that gives you the dll error and with your mouse right-click it. The right-click menu will open. Click the "Uninstall" option in this menu to start the uninstall process.
    Uninstalling the software that gives you the dll error
    Step 2:Uninstalling the software that gives you the dll error
  3. You will see a "Do you want to uninstall this software?" confirmation window. Confirm the process and wait for the software to be completely uninstalled. The uninstall process can take some time. This time will change according to your computer's performance and the size of the software. After the software is uninstalled, restart your computer.
    Confirming the uninstall process
    Step 3:Confirming the uninstall process
  4. After restarting your computer, reinstall the software that was giving the error.
  5. You can solve the error you are expericing with this method. If the dll error is continuing in spite of the solution methods you are using, the source of the problem is the Windows operating system. In order to solve dll errors in Windows you will need to complete the 4th Method and the 5th Method in the list.

Method 4: Solving the Opcmex.dll Error using the Windows System File Checker (sfc /scannow)

  1. First, we must run the Windows Command Prompt as an administrator.
    NOTE! We ran the Command Prompt on Windows 10. If you are using Windows 8.1, Windows 8, Windows 7, Windows Vista or Windows XP, you can use the same methods to run the Command Prompt as an administrator.
    1. Open the Start Menu and type in "cmd", but don't press Enter. Doing this, you will have run a search of your computer through the Start Menu. In other words, typing in "cmd" we did a search for the Command Prompt.
    2. When you see the "Command Prompt" option among the search results, push the "CTRL" + "SHIFT" + "ENTER
    3. " keys on your keyboard.
    4. A verification window will pop up asking, "Do you want to run the Command Prompt as with administrative permission?" Approve this action by saying, "Yes".
    Running the Command Prompt with administrative permission
    Step 1:Running the Command Prompt with administrative permission
  2. Type the command below into the Command Line page that comes up and run it by pressing Enter on your keyboard.
    sfc /scannow
    Getting rid of Windows Dll errors by running the sfc /scannow command
    Step 2:Getting rid of Windows Dll errors by running the sfc /scannow command
  3. The process can take some time depending on your computer and the condition of the errors in the system. Before the process is finished, don't close the command line! When the process is finished, try restarting the software that you are experiencing the errors in after closing the command line.

Method 5: Solving the Opcmex.dll Error by Updating Windows

Some softwares require updated dll files from the operating system. If your operating system is not updated, this requirement is not met and you will receive dll errors. Because of this, updating your operating system may solve the dll errors you are experiencing.

Most of the time, operating systems are automatically updated. However, in some situations, the automatic updates may not work. For situations like this, you may need to check for updates manually.

For every Windows version, the process of manually checking for updates is different. Because of this, we prepared a special guide for each Windows version. You can get our guides to manually check for updates based on the Windows version you use through the links below.

Guides to Manually Update for All Windows Versions

  1. Guide to Manually Update Windows 10
  2. Guide to Manually Update Windows 8.1 and Windows 8
  3. Guide to Manually Update Windows 7 and Windows Vista
  4. Guide to Manually Update Windows XP

Common Opcmex.dll Errors

It's possible that during the softwares' installation or while using them, the Opcmex.dll file was damaged or deleted. You can generally see error messages listed below or similar ones in situations like this.

These errors we see are not unsolvable. If you've also received an error message like this, first you must download the Opcmex.dll file by clicking the "Download" button in this page's top section. After downloading the file, you should install the file and complete the solution methods explained a little bit above on this page and mount it in Windows. If you do not have a hardware problem, one of the methods explained in this article will solve your problem.

  1. "Opcmex.dll not found." error
  2. "The file Opcmex.dll is missing." error
  3. "Opcmex.dll access violation." error
  4. "Cannot register Opcmex.dll." error
  5. "Cannot find Opcmex.dll." error
  6. "This application failed to start because Opcmex.dll was not found. Re-installing the application may fix this problem." error