Spying On My Daughters PC Usage Via Home Lan

I have a unique problem child…and a unique need to be “Spying On My Daughters PC Usage Via Home Lan”.

I am the Home Office Network Admin. / Technician here. I want to see what she is doing while I am not in the same room with her, and take over the control, (If needed), and see exactly what she is working on that we ( All 4 of Us) keep getting hacked or attacked by viruses that I catch and clean later.

I would like to see everything..desktop, IE7, MSN, Yahoo, etc, etc, etc…Everything, every single mouse move or click! Is that possible without software to be installaed???