I want to save my data server (containing .doc, xls, pdf files ) from worms and viruses, specially from those that creates newfolder or subfolder exe files like, rvhost and svchossst. Many clients have already infected with these viruses, but I want to save just my server to get infected with their activities. I have used commandoio fire wall and zone alarm but can't succeeded. Can u kindly tell me any trick or free software that will easy to manage and easy setting.. . (I WANT THAT EXE FILES can't Enter THE FOLDERS OF MY SERVER)

Errrrm, forget firewalls and get yourself some serious anti vrus and anti malware software!!