Can I suppress dialog outside script?

I have a start up script that is used in cross-plattform production. It fixes the links of pictures. Works fine but the user still gets the warning message before the script does its work. If the document is opened by script I can suppress the dialog but I did not find a way for the regular InDesign Open action.

Is it possible by script?

(I think it was the case in the old days that setting userinteraction level to neverinteract  would get rid of all dialogs but this seems to be no longer the case.)

Any idea?

Thank you,

Ralf