In 1981 he got an engagement as principal flutist of the Staatskapelle Dresden by Herbert Blomstedt, where he played until his retirement in 2010.
He has co-edited historical sources with Peters and Hofmeister Leipzig (e.g. by Johann Joachim Quantz and his teacher Pierre-Gabriel Buffardin and the Viennese composer and pianist Leopoldine Blahetka).
In 2010 Haupt received his doctorate on the topic Die Einführung der Böhmflöte in der Dresdner Hofkapelle (The introduction of the Boehm flute in the Dresden court orchestra) at the Hochschule für Musik Carl Maria von Weber Dresden.
The revised version was published in 2011 as volume 2 of the Studien zum Dresdner Musikleben im 19.
Haupt also deals with painting and graphics, works by him have already been exhibited several times, e.g. in 2011 in the series "Malende Musiker - Musizierende Maler" of the Sächsischer Musikrat [de] in Colditz Castle.