Analysis of information sources in references of the Wikipedia article "Control-Alt-Delete" in English language version.
LocalReboot between Windows 3.x and Windows 95LocalReboot in Windows 95Winlogon is a system component
LocalReboot between Windows 3.x and Windows 95LocalReboot in Windows 95From SYSINI.WRI in Microsoft Windows Resource Kit for Windows 3.1: LocalReboot=<on-or-off>; Default: On; Purpose: Specifies whether you can press CTRL+ALT+DEL to quit applications that cause an unrecoverable errors in 386 enhanced mode, without restarting Windows. If this setting is enabled, you can quit the applications. If this setting is disabled, pressing CTRL+ALT+DEL will restart your entire system (as it normally does.)
From SYSINI.WRI in Microsoft Windows Resource Kit for Windows 3.1: LocalReboot=<on-or-off>; Default: On; Purpose: Specifies whether you can press CTRL+ALT+DEL to quit applications that cause an unrecoverable errors in 386 enhanced mode, without restarting Windows. If this setting is enabled, you can quit the applications. If this setting is disabled, pressing CTRL+ALT+DEL will restart your entire system (as it normally does.)