\dirtree{%^^A
    .1 [start folder].
      .2 doc\DTcomment{The generated PDFs and User Guide Sources}.
        .3 [user-guide]\DTcomment{Sources for the User Guide}.
        .3 skb.pdf\DTcomment{The generated Documentation}.
        .3 skb-guide.pdf\DTcomment{The User Guide only}.
      .2 run\DTcomment{The generated Class and Style Files}.
        .3 skb.cfg\DTcomment{The global Configuration File}.
        .3 skb.sty\DTcomment{The Style File}.
        .3 *.cls\DTcomment{The Class Files}.
      .2 source\DTcomment{The Source files}.
        .3 skb.dtx\DTcomment{Documented \LaTeX Source File}.
        .3 skb.ins\DTcomment{The \LaTeX Installer File}.
        .3 *.txt\DTcomment{Manifest, Licence, Todo List and History as plain Text}.
  }