How to Resolve COM Surrogate has stopped working (dllhost.exe) Error in Windows Computers

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COM Surrogate is a general term for processes called dllhost.exe that separate Windows Explorer from individual DLL hosts that are prone to crashes. In particular, DLLs that work with multimedia thumbnails. There are many others, but this is one of the most common.

COM Surrogate ensures that if one of these DLLs fails, Windows Explorer will not crash as a whole. Think of it as the first line of defense for system stability.

What causes COM surrogate (dllhost.exe) to stop working?

  • User account control settings.
  • Possible infection with malware.
  • Faulty or corrupted program or file.
  • Data execution prevention settings.

How to repair COM Surrogate stopped working (dllhost.exe)?



Updated: April 2025

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Stop COM Surrogate process

  1. Press CTRL + SHIFT + ESC on your keyboard to open the Task Manager.
  2. Now find the Surrogate COM process.
  3. Right-click and select End Task.

Resetting the display adapter

  1. Press the Windows + R keys together to open RUN.
  2. Write devmgmt.MSC in it and click OK.
  3. Reset the display adapters.
  4. Right-click and select Properties.
  5. Click the Drivers tab and select Reset Drivers.

Re-register the DLL via CMD Admin

  1. Open a command prompt as administrator.
  2. Now run these two commands one after the other in CMD.
    regsvr32 vbscript.dll
    regsvr32 jscript.dll



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Frequently Asked Questions

  1. Press Ctrl + Shift + Esc to start the Task Manager.
  2. When the task manager starts, find the COM Surrogate process and right-click it.
  3. If you cannot find the Surrogate COM process, go to the Details tab and look for dllhost.exe.
  4. Right-click on dllhost.exe and select Stop Task.

The problem with COM Surrogate stopping working is mainly caused by an incorrect video driver on your Windows computer. You may be able to solve this problem by reinstalling the graphics driver.

The problem with the COM override stopping is mostly caused by the wrong video driver on your Windows computer. You might be able to solve the problem by reinstalling the graphics driver.