Program Name: Sygate Firewall ( Sygate Personal Firewall - non Pro version )
Website:
http://www.sygate.com/
Current version: 5.6
Desired versions: 4.0 or 4.x
Description: Firewall with low overhead.
5.6 uses too much resources without additional benefit.
I think this is version 5.5 - - which is slightly better than 5.6.
http://cdrom.wip.digitalriver.com/pub/bws/.../bws_49/spf.msi
Thank you for your assistance.