Hi, I try to reach Start->Control Panel->Regional and Language Options->Customize->Decimal Symbol and change of that value from windows forms app written in c#. I search different solution from this :

System.Globalization.CultureInfo ci = System.Threading.Thread.CurrentThread.CurrentCulture;
string decimalSeparator = ci.NumberFormat.CurrencyDecimalSeparator;

because these System.Globalization or culture things can't see if the user change just that value manually on his/her computer.How can I handle this problem, please help..

because these System.Globalization or culture things can't see if the user change just that value manually on his/her computer.How can I handle this problem, please help.. can you explain these two lines?