Use Articulate Presenter
A compressed PowerPoint® file may be useful for larger PowerPoint® files that are too slow over the internet to see as a viewable PowerPoint® file. There are several products that you can purchase to create PowerPoint® files that can be compressed for the web including the following:
Articulate Presenter
According to their website, "Articulate Presenter lets non-technical users create e-learning courses by adding narration and interactivity to a standard PowerPoint® file. At the press of the button, your presentation is transformed into a compelling Flash-based course. " For details, see the Articulate Presenter website.
Once you create a streaming file in a Flash format with one of these products, then you can create a hyperlink to this file in your SoftChalk lesson. For details on creating a hyperlink, see our FAQ How do I link to a file within my lesson?
Adobe Presenter
See the FAQ Use Adobe Presenter.