I want to make service application in Delphi that run and copy some files everyday at 02:00 PM. So i have used timer. but control not going to timer event and Service termin
Instead of a timer, use a simple thread launched in OnStart event.
A tutorial is here:
http://www.tolderlund.eu/delphi/service/service.htm
TTimer is better suited for GUI applications. They need a message pump (see here):
TTimer requires a running message queue in order to receive the WM_TIMER message that allows the OS to pass the message to the HWND, or to trigger the specified callback