>>crazyg+U8
I thought "Alt" in the title is meant in the sense of "stop", as in "halt", but on second thoughts maybe that only works in French (where h is always silent)?
>>viccis+Dv
But doesn't Ctrl+Alt+Del bring up the screen to switch users or sign out? "Task Manager" is one item in the list of options you get, but it's not the main one or anything, in fact it's the last:
>>crazyg+gO
The author may just be showing their age a bit. That's what Ctrl+Alt+Del does on modern versions of Windows, but from Windows 95 to Windows XP (inclusive) it directly launched the Task Manager.