He teamed with Messner, the first man to climb all fourteen 8000m peaks, on successful climbs of Cho Oyu, Gasherbrum I and II, Dhaulagiri, Annapurna, Makalu, and Lhotse, and is a UIAGM mountain guide (English, International Federation of Mountain Guide Associations). Chris Bonington described Messner's relationship with Kammerlander as the most amicable of Messner's climbing partnerships.