Microsoft Windows users may notice a process running on their computer called dllhost.exe.

Users wonder what it is and if it might be a virus.

DLLHOST.EXE is a safe process that runs in the background of Windows computers.

Windows Defender Header

The COM stands for Component Object Model.

To put it simply, this is a function inherent to Microsoft Windows computers.

It refers to separate blocks within software and operating system files that are self-contained but work with other parts.

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An example of the DLLHOST.EXE process in a task manager window.

This is an integral part of the way Windows works.

Without the process, several aspects of Windows will no longer work as expected, or at all.

Important: DLLHOST.EXE is a harmless process that should NOT be terminated without a very good reason.