Solve windows2003 network address translation component (Ipnat.sys) is used

When the Windows 2003 server is installed on the server and the firewall is ready to be opened, the following prompt appears: "The Windows Firewall cannot be run because another program or a running service may be using the Network Address Translation component (Ipnat.sys)." What is the reason? How can I get it to run, and now I can't ping this server with another machine, but it can ping other machines. What is the reason?

a. Control Panel => Administrative Tools => Routing and Remote Access Disable local

b. View Windows Firewall/Internet Connection Sharing (ICS) startup service in the service

Workaround:

Look at the firewall should be able to pop up the window

From Google Find other ways to
1.: Control Panel => Administrative Tools => Routing and Remote Access Select Off. Then open the protective wall and pop up a window: "The windows firewall settings cannot be displayed because the related services are not running. Do you want to start the Windows Firewall/Internet Connection Sharing (ICS) service?";

I choose "Yes "When a window pops up, "Windows cannot start the Windows/.... (ICS) service. Error 10047: An address that is incompatible with the requested protocol is used."

Viewing Windows Firewall/Internet Connection Sharing (ICS) is turned off in the service, can't open

and then find the reason in the event viewer, and finally find one.

My computer right-click management--> Inside the bottom to see if there is an option: routing and remote access?

If there is, then see if he is enabled?

If you have enabled your own firewall that cannot be enabled, you can turn off routing and remote access.

Network Connections service that depends on Windows Firewall/Internet Connection Sharing (ICS) service Unable to start due to the following error:

The service could not be started because the device that was disabled or associated with it did not start.

Then open the Network Connections service in the system-service

and then open the Windows Firewall/Internet Connection Sharing (ICS) service.

Of course, you can also directly Click OK, and wait for a while, the system will automatically open its associated service.