Visual Studio 2003 / C#

I have a windows based application, with a SQL backend running on Windows
Server.  It is a basic job logging system in short.  There is a requirement
to automatically generate jobs at regular intervals.  What is the best way to
achieve this functionality. My initial thought was to create a service...but
I am not really sure what that involves, nor whether it is the right way to
go.  Can I create a Windows service, which would just call a piece of C#
code?  Then my C# code could just poll an "event" table in the database and
action any events that are scheduled for that date and time.

Any suggestions people??

Thanks

Steve