In 1899 he became editor of the magazines "Wiener Studien" and "Zeitschrift für die österreichischen Gymnasien", and from 1925 until his death was chairman of the Vienna "Corpus Scriptorum Ecclesiasticorum Latinorum" (CSEL).
In 1899 he became editor of the magazines "Wiener Studien" and "Zeitschrift für die österreichischen Gymnasien". From 1925 until his death in 1941, Hauler was chairman of the Vienna "Corpus Scriptorum Ecclesiasticorum Latinorum" (CSEL).