Asp.net webservics appliccaion

Hi,
 
I am working in a IT industry . i am developing an intranet application.In this, the  server system maintains the database of all client systems.I want to push the customized code into all client machines  at a time and also i want to keep track of data moving in the client systems. how to achieve this .please to do the needful.

thanks in adv,
Raheem