In the second link there you'll see that per the system requirements Windows Server isn't supported.
Freescan merely scans and does not remove any threats so why not use one that does? Check out Eset or similar online scanners.
I'm afraid we don't know too much about Freescan except that it's merely a scanner but not a cleaner and is rather old.
**As you appear to be in Iran we cannot legally assist you I'm afraid. Please see: http://community.mcafee.com/docs/DOC-1239