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This issue affects all versions of ECTR 5.2 / S4ECTR 1.1.

Question or Problem


  • You try to switch the Application.
    • For example from CAD to ECTR, Office to ECTR or ECTR to Office.
  • In ECTR you try to call a SAP GUI window.
    • For example "Display Document (SAP GUI)".
    • Show F4 help for an input field.
  • In the CAD system you call an ECTR window.
    • For example: "Create document" or "Add component".


  • The called Application Window stays in the background.

Caused by

Window 10 release build 1809


Change the Windows Registry, see .

Set Computer\HKEY_CURRENT_USER\Control Panel\Desktop\ForegroundLockTimeout to decimal 0

Maybe a restart of the PC is required for this change to have an effect.