How To Delete an “Orphan” Content Type? (The content type “CT1” is part of an application feature)

Problem I created a set of content types from a feature and after the installation, activation of this feature, I used (in list or document libraries) all content types contained in this feature but one, called CT1 for instance After Continue reading How To Delete an “Orphan” Content Type? (The content type “CT1” is part of an application feature)