Tracking of each and every event on a laptop

Hi All,

I have a small Quick Question here...

I would like to know 2 things here

I am using Windows Vista Machine... So, i would like to
track everything (i.e) chats,videos messages sent & received thru
yahoo messenger or MSN or Oovoo or Skype etc....

1. So, how would i know if the tracking feature is enabled on my
system or not? If its enabled, how can i view that and disable it?

2. If its disabled, how would i enable it?

Kindly, let me know ASAP how can this be done....


Thanks in Advance,
Uhsiav.