Apparently you can! I didn't know it myself until I asked the question after seeing your post but with a few things this is possible. You will need:
- QlikView Access Point
- IE plugin for QlikView
I am told you can then open a document using IE and drag charts into Power Point. It sounds like it drops an object into Power Point that has a connection to the document on the server so you are able to make selections within Power Point and the chart will update itself.
Hopefully this will provide you with a starting point.