Windows XP set up remote desktop dual administrator login at the same time

When we use the remote desktop function, there are usually two administrators logging in at the same time, but by default, WinXP can only have one administrator account, which will cause an administrator account to be logged out between the two. So, how to solve this problem, let the two administrator accounts exist at the same time?
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Workaround:
1. Download the extracted termsrv.dll file from the Internet.
2. Restart and press F8 to switch to safe mode and replace it with the file with the same name under C:\\WINDOWS\\system32. (For Windows XP SP2, you must also replace the C:\\WINDOWS\\$NtServicePackUninstall$ and C:\\WINDOWS\\ServicePackFiles\\i386 directories with the same name).
3. After replacing the system, you must also disable SFC (Windows system file protection function), otherwise there will be a "Windows File Protection" prompt.
4. Save the following as a reg file into the registry:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon]
“SFCDisable”=dWord:ffffff9d
Next, you need to enable the multi-user function of the remote desktop, save the following content as a reg file and import it into the registry:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\\ System\\CurrentControlSet\\Control\\Terminal Server\\Licensing Core]
<quo;EnableConcurrentSessions”=dword:00000001
If the Windows XP SP2 firewall is enabled, it must also be allowed to connect through port 3389. The specific method is: open “ Network Neighborhood & rdquo; → & ldquo; View network connection & rdquo;, click the "Change Windows Firewall Settings" in the upper left column, in the pop-up "Windows Firewall" window, switch to & ldquo; Exceptions & rdquo; tab, click the <; add port & rdquo; button, in the next window, enter “ name & quoquo; (can be arbitrarily named) and “ port number & rdquo;: 3389, OK.

For intranet users, port mapping must also be done for the external network to be able to connect smoothly.