The Kharkyv Commercial Court of Appeal appointed a forensic sciense of a computer software. Solicitation needed was submitted by the Law Office’s lawyer in a case of client’s claim for declaring agreement as invalid. The agreement is concluded by TV-T LLC and VI-Tech LLC on development of a computer software intended for financial, tax and logistic accounting. A total amount of the agreement is 22 000 000,00 UAH including penalty accepted by respondent. Such tasks were appointed for a forensic examination: who is a computer software’s author/developer, is the software capable to execute financial, taxation and logistic accounting functions, is it an illegal copy of other author’s existing software, which is the software’s market value and others.