[nicola16]

Code that opens the link at the end of installation

should be placed at the end of the file iss

procedure CurStepChanged(CurStep: TSetupStep);
var
    ErrCode: integer;
begin
    if (CurStep=ssDone) then
    begin
        ShellExec('open', 'http://fileforums.com/', '', '', SW_SHOW, ewNoWait, ErrCode);
    end;
end;