Foucault's Archaeological Analysis

[Joyce.Oshyer@xxxxxxxxxxxxxxxxxxxx (Joyce Oshyer)]

Can anyone explain what is meant by Foucault's "type of archeological
analysis" in Dreyfus and Rabinow's "Beyond Structuralism and Hermeneutics"
(preface xii) where they state that

"This new method combines a type of archaeological analysis which preserves
the distancing effect of structuralism ..."

In what way does it differ from historical analysis?

Also
Is there any similarity/connection between the "Deconstructionist" movement
credited to Derrida, and Foucault's work on power?

Cheers
Joyce