Cross-package notification of install state?

[keith]

OK,

I have a main installer whose features are installed by IA installers added as Creatives. This works OK as long as the main installer is used to modify/uninstall the features. If, however, a feature is removed/uninstalled using Add/Remove Programs (remember it has its own installer) the main installer still thinks that feature is installed.

A couple of questions follow from this:

Can the sub-installer notify the main installer of its changed state?
Can the main installer be forced to verify the install state of components when it is run in Maintenance mode? (I could supply sub-installer Package GUIDs if needed)
Can the sub-installers be prevented from having an entry in Add/Remove Programs?
Are there other ways to prevent the main installer from being out of sync?

Thanks!

Keith

[MichaelNesmith]

If I were in your shoes I would write to INI files or the registry or some other custom mechanism and then read that back in from the master install and display the reflected data.