> hi everybody
>
[quoted text clipped - 13 lines]
> please help me out in this problem ??? what functions /methods to use
> for this.
Normally this kind of thing is done using a file system filter driver and a
cooperating service - which is a very different thing from simply tracking
changes. To write a filter driver, you'll need to purchase the "IFS Kit",
which goes for about $900, and plan to spend a year or so learning enough
about the file system to write a high-quality driver.
You might not be aware, but Windows Server 2003 has a facility called
"Volume Shadow Copy" that can transparently do this for you (within certain
parameters).
-cd