Erro IIS - O arquivo já está sendo usado por outro processo - 0x80070020 - IIS - educoutinho blog
c# - "Failed to Register URL" error in VS 2015 - Stack Overflow
IIS Manager Error - HRESULT 0X80070020 - THE PROCESS CANNOT ACCESS THE FILE BECAUSE IT IS BEING USED BY ANOTHER PROCESS
IIS–The process cannot access the file because it is being used by another process (Exception from HRESULT: 0x80070020) - Integent
Windows 8 – Erro “HRESULT: 0×80070020″ ao iniciar site no IIS 8 | Windows 8 Dicas
asp.net - Unable to start web site IIS HRESULT: 0x80070020) - Stack Overflow
IIS 0x80070020 when starting a website – Tomas McGuinness
IIS Manager Error: The process cannot access the file because it is being used by another process. (Exception from HRESULT: 0x80070020) | issuesandfixes
asp.net - Visual Studio Debug says Unable to launch IIS Express Web server (failed to register localhost:443) - Stack Overflow