В коде отчета добавляем:
Private Sub ReCode1(ByVal sender As Object, ByVal e As EventArgs)
try
Dim sourceT As String
Dim utf8 As Encoding = Encoding.GetEncoding("Windows-1251")
Dim win1251 As Encoding = Encoding.GetEncoding("UTF-8")
Dim utf8Bytes As Byte() = win1251.GetBytes(sender.Text)
Dim win1251Bytes As Byte() = Encoding.Convert(utf8, win1251, utf8Bytes)
sourceT = win1251.GetString(win1251Bytes)
sender.Text = sourceT
catch
end try
End Sub
И указываем его в событии штрихкода — AfterData
