why ActiveX object is disappeared when a date is selected from calender?

why ActiveX object is disappeared when a date is selected from calender?

References

Reference NO 1

http://stackoverflow.com/questions/13658273/why-activex-object-is-disappeared-when-a-date-is-selected-from-calender

Reference NO 2

http://msdn.microsoft.com/en-us/library/office/aa188210(v=office.10).aspx

Reference NO 3

http://msdn.microsoft.com/en-us/library/gg251104(v=office.14).aspx

Reference NO 4

http://www.knowexcel.com/view/665898-non-activex-datepicker-calendar-control.html

Reference NO 5

http://www.know-access.com/view/256710-activex-license-disappearance.html

Reference NO 6

http://www.rondebruin.nl/win/s8/win003.htm

Reference NO 7

http://www.lebans.com/monthcalendar.htm

Reference NO 8

http://www.mrexcel.com/forum/excel-questions/477358-date-time-calendar-control-work-multi-excel-platforms-2003-2007-2010-a.html