This paper is one of the series of 11 Working Papers presenting the software for interactive decision support and software tools for developing decision support systems. These products constitute the outcome of the contracted study agreement between the System and Decision Sciences Program at IIASA and several Polish scientific institutions. The theoretical part of these results is presented in the IIASA Working Paper WP-88-071 entitled "Theory, Software and Testing Examples in Decision Support Systems". This volume contains the theoretical and methodological backgrounds of the software systems developed within the project. 

This paper presents the MCBARG program. This program has been designed to support analysis of conflicting decision situations and mediations in multicriteria bargaining problem. The newly developed approach for supporting noncooperative gaming situations based on the aspiration-led paradigm constitutes the methodological background for implementation.