Starting with .Net 4, this is possible in WPF. You can then place WPF datepickerinside the Winforms application. Example (from MSDN) for disabling Saturday and Sunday:
DatePicker datePickerWithBlackoutDates = new DatePicker();
datePickerWithBlackoutDates.DisplayDateStart = new DateTime(2009, 8, 1);
datePickerWithBlackoutDates.DisplayDateEnd = new DateTime(2009, 8, 31);
datePickerWithBlackoutDates.SelectedDate = new DateTime(2009, 8, 10);
datePickerWithBlackoutDates.BlackoutDates.Add(
new CalendarDateRange(new DateTime(2009, 8, 1), new DateTime(2009, 8, 2)));
datePickerWithBlackoutDates.BlackoutDates.Add(
new CalendarDateRange(new DateTime(2009, 8, 8), new DateTime(2009, 8, 9)));
datePickerWithBlackoutDates.BlackoutDates.Add(
new CalendarDateRange(new DateTime(2009, 8, 15), new DateTime(2009, 8, 16)));
datePickerWithBlackoutDates.BlackoutDates.Add(
new CalendarDateRange(new DateTime(2009, 8, 22), new DateTime(2009, 8, 23)));
datePickerWithBlackoutDates.BlackoutDates.Add(
new CalendarDateRange(new DateTime(2009, 8, 29), new DateTime(2009, 8, 30)));
datePickerWithBlackoutDates.DateValidationError +=
new EventHandler<DatePickerDateValidationErrorEventArgs>(DatePicker_DateValidationError);
MSDN: http://msdn.microsoft.com/en-us/library/k7z0zy8k%28v=vs.110%29.aspx
, Winforms. WPF Winforms.
MSDN WPF Winforms:
https://msdn.microsoft.com/en-us/library/ms751797(v=vs.100).aspx