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

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. Step-by-step: add the empty Default value safely

1. Plain Text

reg add "hkcu\software\classes\clsid\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\inprocserver32" /f /ve

Step-by-step: add the empty Default value safely

1. Open Start → type PowerShell, right-click → Run as administrator (if you want system-wide keys; HKCU doesn't require admin).
2. Backup current key (export): reg export "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2" C:\temp\clsid-backup.reg
3. Add the empty default value: reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /ve /f
4. Verify: reg query "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32"
5. If you need to restore: reg import C:\temp\clsid-backup.reg

4. InProcServer32 – The In-Process Server Key

The InProcServer32 key is critical for COM objects that run inside the calling process’s memory space (as opposed to out-of-process EXE servers). Under this key, the default value ((Default)) points to the physical DLL file path that implements the COM object. Open Start → type PowerShell, right-click → Run

Other values stored here include:

• ThreadingModel – Either Apartment, Free, Both, or Neutral.
• ProgID – A human-readable name for the CLSID.