Reg Add Hkcu Software Classes Clsid 86ca1aa0-34aa-4e8b-a509-50c905bae2a2 Inprocserver32 F Ve -

Handbook: Using the Windows reg add command for CLSID 86ca1aa0-34aa-4e8b-a509-50c905bae2a2

Warning: Editing the Windows registry can break system behavior. Back up the registry (or create a System Restore point) before making changes. Run commands from an elevated (Administrator) PowerShell or Command Prompt when required.

What Does This Command Actually Do?

When executed successfully, this command sets the default value of the InprocServer32 registry key to empty (or nothing). In a typical COM registration, the default value should contain the full filesystem path to the DLL that implements the COM class. Handbook: Using the Windows reg add command for

By setting it to empty (or not specifying a path), the command effectively invalidates the registration of that COM class. Any attempt to create an instance of that CLSID will fail unless another registration (e.g., per-machine in HKLM) overrides it. Mastering Windows Registry: A Deep Dive into the

5. /f switch

/f forces the operation without prompting for confirmation. This is dangerous if you’re experimenting; one typo can break part of your shell or application behavior. Handbook: Using the Windows reg add command for

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Mastering Windows Registry: A Deep Dive into the reg add Command and CLSID 86CA1AA0-34AA-4E8B-A509-50C905BAE2A2

Understanding the reg add Command for CLSID InprocServer32: A Deep Dive

If you want a named value (e.g., ThreadingModel)

Often InprocServer32 also has a ThreadingModel value:

reg add "HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4E8B-A509-50C905BAE2A2\InprocServer32" /v ThreadingModel /t REG_SZ /d "Apartment" /f

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