On 9/15/15, Géza Kovacs Géza <kg0231 at gmail.com> wrote: > Thx your answer. > I unable to compile UOS on Windows, I tested it with Free Pascal 2.6.4. > > It produces the following errors: > > uos_portaudio.pas(359,9) Error: Identifier not found "Result" Try adding -MDelphi or -MObjFpc to the compiler options. Bart