Wild1,
Luc is correct and Terry offers good advice.
Though laborious, there is a way to create this effect using a drawing
object.
With the drawing toolbar, select the line object. Strike out your text
by drawing a line through it. Double click the line and set it to the
thickness and color that you want. Next click the Layout Tab. Set
wrapping style "In Front of Text" click the advanced tab and set the
absolute horizontal position to the character and the absolute veritcal
position to the line. Show non-printing characters CTLR+* and then
drag the drawing anchor to the leading character of the text you want
strickened.
Lot of work, I know but it might serve your current need.