The series of products "FindDec" find optimum for system of functions. FindDec is available in three versions: Standard, Professional, and Unlimited. FindDec is an application for multicriteria optimization (searching maximum or minimum) of a system of functions with a help of modified genetic algorithm (or GA); it finds not only global optimums, and also local optimums. It can find optimal solutions to problems which are "unsolvable" for standard linear and non-linear optimizers. Work consists of six steps in the application «FindDec» 1. Input of the problem 2. Option of parameters of GA 3. Option of termination conditions of GA 4. Option of output and saving 5. Searching of decisions 6. Saving of a result Steps 1, 5, 6 are compulsory.