Ctrl + Alt + End will send Ctrl + Alt + Del to a remote PC.
Alt + Page Up will Switch between programs (Alt + Tab is the local command)
To display the Task Manager (Ctrl + Shift + Esc is the local command), press Ctrl + Alt + End and select Task Manager.
Alt + Home will bring up the Start menu on the remote computer.
Ctrl + Alt + (+) Plus/ (-) Minus… Minus takes a snapshot of the active window and plus takes a snapshot of the entire remote desktop window.
