Simple RAW Thread for 3.5 #36: The Triple Dozen

[Khedrac]

A 92 No, they don't automatically stop.

In the case of charm person the person under its effect will still regard the (now dead) caster as their friend and act accordingly (grieve, try to bring the back to life etc.) until the spell expires.

Domination is actually simpler - the last active command remains in effect until it becomes irrelevant. So "keep me alive" becomes irrelevant, "protect me" becomes protect the corpse and "kill your friends" remains unchanged.
If no relevant command is active the victim can act normally.

Note - a badly worded command (e.g. "keep me alive" when the target doesn't know that they are a vampire) can have negative effects (such as a heal when the vampire gets damaged).