Assuming the home/consumer product here. In McAfee SecurityCenter you can only allow such things through the firewall by opening it and going to Web and Email Protection > Firewall > My Network Connections and Internet Connections for Programs. If your software is v13.6 or higher you can add files to the Exclusion list of the anti-virus portion too, but that is conditional on none of them being suspicious in behaviour. If they are then it will still quarantine them.
It's probably best you consult with Technical Support by phone. It's free and linked below:
Toronto ▪ Canada
Volunteer Moderator - Consumer Products
I CAN'T HELP PRIVATELY - PLEASE POST IN THE FORUMS
Use Advanced Search To Find Answers
Okay thanks for the Help
OK, good luck ;-)