how to use windows service in another project?

[C# Programming]

Hi Experts,

i created a windows service to insert data in to a sql table.
now i want to call this windows service in another project how can i call this?

i tried to add service reference but it is asking for url
how can i give this?
like webservices, is windows services also contain URL?

please help me out

Thanks In Advance
--Naren