Thanks for the reply.

Our structure is such that it would take months to get approval to purchase
and install any third party software, such as Apose. I am only opening a
powerpoint template and then adding four text boxes to it. That's it. With
that little bit of work, you still say it is not a good thing. This is our
only option at the moment, and any other options would take months to
complete. This is on our intranet server, with no more than two or three
users at any one time, if that makes a difference.

Why would Microsoft offer the ability to hook into Powerpoint if they
recommend against it?

Here is the code that does this (and one section for inserting one textbox):

PowerPoint.Application pp = new
Microsoft.Office.Interop.PowerPoint.Application();
pp.Visible = MsoTriState.msoTrue;
PowerPoint.Presentations presentations = pp.Presentations;
PowerPoint._Presentation presentation =
presentations.Open("D:\\Templates\\quadchart.pot", MsoTriState.msoFalse,
MsoTriState.msoTrue, MsoTriState.msoTrue);
PowerPoint.Slides slides = presentation.Slides;
PowerPoint._Slide slide = slides.Add(1,
PowerPoint.PpSlideLayout.ppLayoutBlank);

//Title
Microsoft.Office.Interop.PowerPoint.Shape ppTitle =
slide.Shapes.AddTextbox(MsoTextOrientation.msoTextOrientationHorizontal, 100,
25, 600, 320);

ppTitle.TextFrame.TextRange.Text = projectName;
ppTitle.TextFrame.TextRange.Font.Size = 32;
ppTitle.TextFrame.TextRange.Font.Bold = MsoTriState.msoTrue;