How to get installed VisualStudio extensions programmatically?

Question

How can I get a list of installed VisualStudio extensions? Somehow through DTE? Just the names would be fair enough.

Answer 1

Does this help:

System.IServiceProvider serviceProvider = package as System.IServiceProvider;
    Microsoft.VisualStudio.ExtensionManager.IVsExtensionManager em =
       (Microsoft.VisualStudio.ExtensionManager.IVsExtensionManager)serviceProvider.GetService(
            typeof(Microsoft.VisualStudio.ExtensionManager.SVsExtensionManager));

    string result = "";
    foreach(Microsoft.VisualStudio.ExtensionManager.IInstalledExtension i in em.GetInstalledExtensions())
    {
        Microsoft.VisualStudio.ExtensionManager.IExtensionHeader h = i.Header;
        if (!h.SystemComponent)
            result += h.Name + " (by " + h.Author + ") v" + h.Version + " " + h.MoreInfoUrl + System.Environment.NewLine;
    }

Copied from https://vlasovstudio.com/visual-commander/commands.html #20.