Found on the old EQNecros site (originally called The Dark Side, by the way), a screenshot of the necro spell research book with the Charm recipe:
http://www.angelfire.com/ar/thedarkside/res1.html
The full research recipe guide is below (dates from Summer 1999 or so) and has older spells like Vampiric Wave and Lifetap AEIV:
http://www.angelfire.com/ar/thedarkside/research.html