How Windows XP system users protect shared folders

It is very simple to share a folder on a network with password protection in Windows 98. But how to protect shared folders in Windows XP?
This little thing is a very simple problem in the previous version of Windows, but it is relatively difficult for XP Professional, and there are not many related records. It is theoretically impossible for the XP Home Edition. But there is a solution: when a person accesses your computer through the local network, XP provides the function of visitor access, even if the account is closed. So if you protect your guest account with a password, your password-protected network can effectively access your PC.
In the XP system (here called "host"", select "Start", "Run", type cmd, press Enter to enter the command line state. Execute the Net user guest password command in the command line environment. Reset a less obvious password. Click “Enter” to reboot the system.
From now on, people who are coming from another computer will need to enter a password to log in to your host. Without them, they can log in at will. But there are still some caveats.
First, visitors must first access your computer via Windows (rather than through an application) to automatically open a password dialog. Visitors cannot access folders through other programs unless they have completed password verification in Windows Explorer, desktop or other Windows resources.
Second, the host's guest account must be closed, which is the default setting. If it is on, select “Start”,“Control Panel”“User Account”,“Guest", Close Guest Account.