[MSDN Library June 1998] WM_ENDSESSION (48.3070175438597%)

MSDN Library Visual Studio 6.0 > Platform SDK > Setup and Systems Management Services > System Shutdown > System Shutdown Reference > System Shutdown Messages

[MSDN Library April 2000] WM_ENDSESSION (48.3070175438597%)

MSDN Library - April 2000 > Platform SDK > Management Services > Windows System Information > System Shutdown > System Shutdown Reference > System Shutdown Messages