File - Application - Install is not showing anymore

I have the following in my plugin_customization.ini:

com.ibm.notes.branding/enable.update.ui=true

And it has worked before, but now I do not see the File - Application - Install menu items anymore ?

Thanks

Thomas

Subject: Check desktop policy setting related to this…

… as this overrides the plugin_customization.ini setting as far as I can remember.