Hi, ALL,
MSDN at this link states that there is a flag

CMIC_MASK_FLAG_NO_UI

The system is prevented from displaying user interface elements (for example, error messages) while carrying out a command.
However, it also indicates that the structure has

nShow

Type: int

A set of SW_ values to pass to the ShowWindow function if the command displays a window or starts an application.
which I think contradicts each other as there is no indication I can set the latter parameter to 0 and there is no SW_NOSHOW parameter in the ShowWindow documentation.

Is it even possible to suppress that window? If yes - how?

TIA!!