In some other product? You'll need to repost in a newsgroup related to that
specific product. When you do so, you should identify the specific version
of the product, as well as what operating system you're using.
If you're talking about an Access form or report, you may be able to add
a line on top of other controls, and modify the line's properties to
achieve the effect you want. I've just "decorated" one of my forms this
way by setting the new line's "Border Style" to "short dashes", and
there is indeed a "Dash Dot Dot" option.