Microsoft Office 2000/Visual Basic Programmer's Guide   

Working with Existing Presentations

You can also use the Presentations collection's Open method to open a presentation saved to disk and create a reference to that presentation at the same time. The following example opens the PowerPointTools.ppt presentation:

Dim ppApp      As PowerPoint.Application
Dim prsPres    As PowerPoint.Presentation

Set ppApp = New PowerPoint.Application
Set prsPres = ppApp.Presentations.Open("c:\opg\Samples\CH05\PowerPointTools.ppt")
With prsPres
   ' Code to manipulate presentation and its 
   ' contents goes here.
End With