Interest in global businesses and such a new form of co-operation as Virtual Production Network (VPNet) is growing along with increasing use of Internetbased engineering and management technologies, and the trend towards VPNet data & knowledge management. Affordable Cost Structure approach (ACs-approach) for VPNet configuration is a new approach to co'!figuration of global production network in order to improve investment efficiency over total facility life-time. A kernel of this approach is a distributed multi-/eve/ constraint satisfaction technology based on a shared domain knowledge model ''product -process -resources". The paper discusses a generic methodology and a research prototype of a distributed decision support system "ProCon" for VPNet co'!figuration.