Article ID: 113669, created on Apr 11, 2012, last review on Jun 17, 2016

  • Applies to:
  • Plesk for Windows


  1. It is not possible to create a domain in Plesk or upload new certificate. A specified logon session does not exist error message is displayed.

  2. Plesk upgrade fails with the following error:

    MSI: Error! Critical action 'Configure Parallels Panel site...' failed:
    Command "C:\Program Files (x86)\Parallels\Plesk\\admin\bin\websrvmng.exe" --configure-plesk-website failed with code 1.
    A specified logon session does not exist. It may already have been terminated. (Exception from HRESULT: 0x80070520)
    In Microsoft.Web.Administration module 
    Exception type: System.Runtime.InteropServices.COMException
    at Microsoft.Web.Administration.Interop.IAppHostMethodInstance.Execute()
    at Microsoft.Web.Administration.Binding.AddSslCertificate(Byte[] certificateHash, String certificateStoreName)
    at Microsoft.Web.Administration.BindingManager.BindingTransaction.Commit()
    at Microsoft.Web.Administration.BindingManager.Save()
    at Microsoft.Web.Administration.ServerManager.CommitChanges()
    at ServerManagerFactory.commit()
    at IISServerManager.commit(IISServerManager* )
    Action '<install-msi-package command-line="ADDLOCAL=ALL ALLUSERS=1 ARPSYSTEMCOMPONENT=1 REBOOT=R AUTOINSTALLER=1" />' failed with error 1603(0x00000643)


The IIS Server SSL certificate was corrupted/expired.


  1. Go to IIS7 manager > IIS server > IIS > Server Certificates:

    Server Certificates

  2. Confirm that the Default Plesk certificate is there

  3. Remove the certificate

  4. Recreate the certificate by running Plesk Reconfigurator (C:\Program Files (x86)\Parallels\Plesk\\admin\bin\reconfigurator.exe) > Repair Plesk Installation and choosing Plesk Services only.

If the issue persists, perform the following:

  1. Remove all expired certificates using Plesk that found in IIS7 manager > IIS server > IIS > Server Certificates
  2. Make sure that these certificates are removed from IIS, if not, remove them manually.

    Note: If Default Certificate is also expired, create new one in Tools & Settings > SSL Certificates, make it default, use it to secure the panel and remove the expired one from Plesk and IIS.

Search Words

While changing the IP using plesk configurator

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Fatal error during installation. (Error code 1603)

A specified logon session does not exist

'Configure Parallels Panel site...' failed

A specified logon session does not exist. It may already have been terminated

IISServerManager.commit(IISServerManager* )

Exception from HRESULT: 0x80070520

failed with error 1603(0x00000643)

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