Im trying to get a PPS file to open in PowerPoint as a PPS. However, depending on a few things it may open as PPT.
If Client Integration is off, it opens as a PPT. If Client Integration is On, it will open as a PPS, but only if you open it from the document library or a web part exposing the library. If Client Integration is on and you link to it from a page (Content Editor) it will open as PPT.
Ideally i would like to control that last issue