How can I enable two concurrent sessions in Windows XP Service Pack 2 (SP2) or later?

A. XP SP2 lets you run two sessions (one local console and one remote desktop) concurrently. You must use a different user for each session. To enable concurrent sessions, perform the following steps:

1. Start a registry editor (e.g., regedit.exe).
2. Navigate to the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Licensing Core registry subkey.
3. From the Edit menu, select New, DWORD Value.
4. Enter the name "EnableConcurrentSessions," then press Enter.
5. Double-click the new value, then set it to 1.