Add new backend process

<table border="0" cellpadding="0" cellspacing="0"><tr><td style="font: inherit;" valign="top">Hello,<br /><br />I want
toadd a new backend process to postgres, to include my own auditing modules.<br />How can i do that, also how can i
signalit after!<br />Sorry if this is very general question!<br /><br />I didn't find any source to learn these things
inpostgres.<br /><br />thanks in advance<br /><br /><br /><img
src="http://signatures.mylivesignature.com/54488/140/06C6DCFF041A6185736DB1D238014ADC.png"style="border: 0pt none !
important;background: none repeat scroll 0% 0% transparent;" /></td></tr></table><br />