COM Surrogate has stopped working (dllhost.exe)

This article describes how to fix the problem “COM Surrogate has stopped functioning”.

The article provides information about the error code 0x80070057 and possible causes of the error.

If you are experiencing problems with your computer, we recommend downloading our driver software utility.

What Is the Definition of COM Surrogate?

COM surrogates are essential for Microsoft Windows to function properly. They host DLL files and offer support for other applications. Without COM surrogates, Windows wouldn’t work correctly.

Error Messages and Potential Causes

If you receive the following error while trying to run a program, it could mean one thing: DLLHost.exe error. This happens when there is a problem with the operating system, such as missing or corrupt files, invalid registry keys, damaged/deleted DLLHost.exe, etc. Here are some common causes and error messages associated with DLLHost.exe issues.

1. Missing or Corrupt System Files

– If you experience an error like “The specified module could not be found”, “Failed to load library ‘C:\Windows\System32\dllhost.dll’ because it is being used by another process.”, or “Could not find file ‘C:\Windows\system32\dllhost.exe’.”, make sure that the system files are up to date. You can download the latest version of Windows Update from Microsoft.

2. Invalid Registry Keys

– If you see an error similar to “Error loading DLL ‘C:\ProgramData\Microsoft\Windows\AppCompat\dllhost.dll’: 0x80070002 – The specified module could not be loaded.” or “Unable to locate package information for ‘C:\ProgramData\\Microsoft\\Windows\\AppCompat\\dllhost.dll’. Please contact your support personnel.”, verify that the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\dllhost.dll exists and contains valid data.

3. Damaged or Deleted DLLHost.Exe File

– If you notice that the file is missing or corrupted, you can use the command prompt to repair it. Type “regedit” into the Start Menu Search box and press Enter. Click OK once RegEdit opens. Navigate to the following path: HKEY_LOCAL MACHINE\Software\Microsoft\Windows NT\Current Version\Winlogon. Double-click the value named DefaultUserName. Name the string value DllHostPath and set the value to %PROGRAMDATA%\Microsoft\Windows\Start Menu\Programs\DllHost.exe. Press OK twice to close both dialog boxes. Restart your computer.

Windows 10: COM Surrogate Has Stopped Working

Microsoft has announced that it has fixed a bug that causes COM surrogates to stop working in Windows 10. In a blog post published today, Microsoft says that the fix is now rolling out via Windows Update. “We’ve identified a bug where some applications might fail to load due to issues with COM surrogate registration,” explains Microsoft. “This bug affects certain versions of Windows 10.”

The company adds that it has been able to reproduce the issue on Windows 7 SP1 and Windows 8.1. However, it hasn’t been able to replicate the issue on Windows Server 2012 R2. Microsoft says that it plans to release another update next week that addresses the issue.

SOLUTION 1: Uninstall Recently Installed Drivers

Right click on the Start button and choose Device Manager from the context menus. Locate the devices that are listed under Other Devices. If there are any drivers that are installed recently, right click on it and uninstall it. This will fix most of the problems related to driver installation issues.

If this doesn’t work, try uninstalling the drivers one by one. You can find the name of each driver by opening the properties of the device and looking for the Driver tab. Then look for the Name column. Each driver has a unique name. To uninstall a specific driver, follow the steps mentioned above. However, make sure to keep track of what you’re doing because some drivers might come bundled together. For example, if you install both Intel HD Graphics and AMD Radeon graphics cards, you’ll want to uninstall both of them.

SOLUTION 2: Roll back the Video Driver

Open Device Manager by following steps listed in Fix 1. Navigate to Display adapters. Expand it. Right click on the adapter device. Choose properties. Go to Driver tab from general section. Click on Driver package rollback button. Select the video driver and choose why you want to roll back the driver.

SOLUTION 3: Kill Virus

The most common way to deal with malware infections is to kill it. In fact, many people don’t even know what malware is because they think antivirus software does everything for them. But there are some things you can do yourself to help prevent future infections.

First, make sure your anti-malware program is up to date. If you’re running Windows 10, Microsoft offers automatic updates for both Windows Defender and Malicious Software Removal Tool. You’ll want to check your settings to ensure that “Automatically download and install security updates” is enabled.

Next, keep your operating system clean. Make sure you’ve removed unnecessary programs and files from your computer. This includes old browser plugins, unused apps, temporary files, and anything else that might slow down your machine.

Finally, use strong passwords. A password manager like LastPass makes creating unique passwords easy. And remember, you shouldn’t reuse passwords across multiple sites.

SOLUTION 4: Add Dllhost.exe to the DEP Exception

When you run an executable file such as.exe, dllhost.exes, or.dll, it will always be running in Windows 10. If you open Task Manager, you’ll see that dllhost.exe is listed under “Other processes.” You might think that this process is just there to help debug programs, but it actually runs in the background even when no program is running.

If you want to prevent dllhost.exe from running automatically, you can do one of three things:

1. Open Registry Editor and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options. Right-click on dllhost.exe and select Delete.

2. Double-click on Allow the following software to make changes to this registry key. Select Yes. Double-click on Restriction Level and select Lowest. Repeat steps 3 and 4 for each group of applications that you wish to allow access to the registry key.

3. Disable DEP by opening Command Prompt as Administrator and typing regedit. Press Enter. Navigate to HKEY_LOCATION_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management. Create a DWORD value named EnableDEP and set its data type to REG_DWORD. Set its value to 0x00000001. Exit the Registry Editor. Restart your PC.

SOLUTION 5: Close COM Surrogate in Task Manager

In Windows 10, there are some issues with COM Surrogate process running in Task Manager. This issue causes problems like “Windows cannot access the file because it is being used by another program.” To fix this problem, follow the steps given below.

1. Click Start button and type “Task manager”.

2. In the list of programs, look for COM Surrogate and end the process.

3. Restart your computer.

4. Check whether the error still exists.

5. If you’re unable to resolve the issue, please contact our support team.

SOLUTION 6: Check Disk for Errors

If the COM Surrogate Error only appears on a particular hard drive, it could mean that there are some bad sector issues. To fix this problem, you can use Windows 7 Disk Cleanup tool to scan the drive for errors. Method 2: Run chkdsk /r command.

To run the chkdsk command, follow these steps:

1. Open Command Prompt window.

2. Type “chkdsk /f c:” where c: represents the name of the volume containing the drive letter of the faulty drive.

3. Press Enter key.

4. Wait till the process completes.

SOLUTION 7: Reset Internet Explorer Settings

Open the Run dialog box by pressing the Windows key + R keys together. Type “c:\windows\system32\rundll32.exe shell32.dll,Control_RunDLL cpl /regserver” into the text box and press the OK button to run it.

Click on the Advanced tab. Then find the Reset Internet Explorer settings option.

Click on the Reset… button. Wait for the process to complete.

Reboot your PC once the resetting process is done.

SOLUTION 8: Re-register the DLLs

Microsoft Windows 10 64 Bit – Fix 8: Re-registering the DLLs

1. Open command prompt as Administrator.

2. Type “regsvr32 jscript.” and press enter.

3. Type “regsvra 32 vbscript.” and press enter again.

4. Close the command prompt.

5. Restart your computer.

6. If you are still having problems, repeat step 3 and 4.

7. If you are still experiencing issues, please contact Microsoft support.

SOLUTION 9: Disable Thumbnails

If you’re having trouble viewing photos or videos on Windows 10, it could be because of a corrupt file. If you’ve tried everything else, here’s how to disable thumbnails in File Explorer.

To do this, open up File Explorer and navigate to the folder where you want to disable thumbnails. Right-click on the folder and select Properties. Click on the Advanced tab and scroll down to the section called “Thumbnail Settings.” Uncheck the box next to “Show thumbnail previews of items in this folder.” You’ll see a warning about losing access to some of your files, but don’t worry — we’ll show you how to fix that too.

SOLUTION 10: Update Codecs

Microsoft has acknowledged that there are some issues with the latest version of Windows 10. One such issue is related to the codecs used to play media files. If you’re having trouble playing videos or audio files on your PC, it might be because of the codecs installed on your computer. Microsoft says that the problems can be solved by updating the codecs. Here’s how to do it.

Step 1: Open Control Panel.

Step 2: Click Programs & Features.

Step 3: Select “Turn windows features on or off”.

Step 4: Scroll down and select “Windows Media Player”.

Step 5: Click OK.

Step 6: Restart your computer.

COM Surrogate Issues on Windows 10

Microsoft Office applications use COM surrogates to help make sure that programs run smoothly. These are small files that contain information about how to interact with certain types of software. They do not affect the performance of the program itself, but they can cause issues if they do not work properly.

There are several different methods you can try to resolve COM surrogate errors. You could uninstall and reinstall the application, or you could try one of the following solutions:

1. Remove the file manually

2. Disable the feature temporarily

3. Use a third party tool to repair the problem

4. Reinstall the application

5. Repair the registry


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