Hi guys, wanting to write my own system which (for Windows XP) will monitor packets entering ports and scan them against known virus signatures. Also wanting to constantly check the registry and certain file directories (such as Windows folder) for changes to files which may suggest an attack- then an automated order to do something (close ports, back up data etc) will occur.

Im a Java programmer (not an expert) and havent done too much on C++, however ive been advised i should use C++ for this to use the WIN32API.

I was wondering if anyone could give me some pointers for this please?

Thanks in advance, help very much appreciated