Hi, i tried to installe several (Audio) Libs and a get get allways the errormessage: VARIABLE NOT DEFINED This is the generated code in the init-method : pParamDesc := pFirstParamDesc := SELF:oAuto:__AllocArgDescs(1) What i am making wrong ????? Thanks you for help Michael -- Message posted using http://www.talkaboutprogramming.com/group/comp.lang.clipper.visual-objects/ More information at http://www.talkaboutprogramming.com/faq.html