I need to find out on which (sub)sites a certain webpart is used. In a data sharing environment with many subsites and pages, I want to check if and where certain (third party) webparts are used. Is there a way to get a list of the locations where it is on the page?
Or more general: How do I find out where a feature is used? (For instance a site-template, when is it safe to uninstall it)