There’s some good info in there, such as this nugget:

• If Task Manager ever hangs or crashes, start another by pressing ctrl-shift-esc. Winlogon will look for an existing instance and try to revive it for up to 10 seconds. If the old Taskmgr doesn’t start making sense by responding with a secret code within that time, another one will be launched. That way, you’re never without a Taskmgr as long as there are some resources available.