Programmatically modify Firewall rules in Windows Server 2008 R2

Question

I want be able to programmatically enable, disable, create firewall rules in Windows Server 2008 R2. What is the object model to modify the firewall rules from .Net/PowerShell?

Answer 1

There is probably a WMI set of classes for this but I wanted to point out that you can use the existing command line utility netsh.exe from PowerShell. Execute:

netsh firewall /?

To see its options.

Answer 2

There's also using COM:

$fw=new-object -com hnetcfg.fwmgr