virus on wireless network

I have a basic home wireless network with 4 PCs where the only thing shared is the internet connection and the printer which is attached to 1 PC. I would like to know whether, if one PC on the network gets infected with a virus or other malware, can it do any damage to any of the other PCs by attacking them through the network.

I can't find the answer to this anywhere; although I appreciate this may because it' a a dumb question.

 

Hi,

In Vista you can go to the network centre and select the options you would like to share:
- network detection = yes
- sharing folders/files = no
- sharing public folders = no preferably/yes to exchange files
- sharing printers = yes
- sharing access with secured key = yes
- sharing media = no

I have a Dutch Vista64, so I am not sure I translated the above correctly.

In XP it depends on the software which came along with the card and the default XP settings. I do not know the default XP settings. You can check on my network places whether one PC can see the other.