After having used for some years another firewall I considered now to switch to MS built in Windows Firewall (in Win 7 Pro).
So I deinstalled the old FW and enabled the MS WF.
When I go now to wf.msc e.g into "Inbound rules" section then there are much to my surprise many "Allow" rules for...
allow rules
firewall
inbound rules
initial state
internet access
network access
network security
notifications
program permissions
resetrules
security
software installation
third-party tools
troubleshooting
user experience
windows 7
windows security