XP can use sp2 to log in simultaneously with multiple users

[Introduction]
According to the computer gamers of the Microsoft Windows XP SP2 newsgroup, they found that XP SP2 finally includes another new feature that has long been expected by users: allowing connection sessions to be concurrent. According to their description, as long as XP SP2 Beta is installed and running, users can simply modify the registry to achieve the effect of opening this new feature. After effective modification, users can log in simultaneously by multiple users through the console or remote desktop. Before adding this feature from Windows 2003, the XP system does not allow multiple users to log in.
Specific modification method, open the registry editor, find HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\Terminal Server\\Licensing Core

Create a new key. The type is DWORD, the key name is "EnableConcurrentSessions", and the key value is "1". This way your system can support this new feature.

But according to tests confirmed that such concurrent connections supports up to two users simultaneously log in to a system, and can not use the same account. When the third user makes a connection request, he or she will be prompted to disconnect one of the two original login users.