Windows7 open 80 port supports LAN access apache

In the LAN, I want to access the webserver from other machines through IP. If the webserver is an xp system, the visitor is also an xp system, and can be accessed directly, but some systems are win7. At this time, port 80 is blocked by the firewall. , so to reset the rules on the firewall, as follows: To add a rule in the Windows Firewall for port 80, do the following:

Go to the Control Panel and launch "Windows Firewall"Go to " ;Advanced Settings"Select "Inbound Rules" in the left paneSelect "New Rule" in the right paneIn the New Inbound Rule Wizard, select "Port" as Rule Type, then click on "Next"Select "TCP and Put "80" (and any other ports you want to open) in "Specific local ports", then click on "Next"Select "Allow the connection", then click on "Next"Select the network location where The rule should apply (select them all if you're Not sure), then click on "Next"Give a name and an optional descriptionThat should do it.