Interfacing arduino to Power Point

Using Arduino Project Guidance
7

Now I know arudino can send data to the serial port of the pc, but how can I interface the serial port to power point?

Hi,
if you know any .NET programming language (i.e. VB, C#) there is an easy way for controlling a power point presentation from code:

         string presPath = "c:/Temp/test_pps.ppt";
         //Create an instance of PowerPoint. 
         Microsoft.Office.Interop.PowerPoint.Application app = new Microsoft.Office.Interop.PowerPoint.Application();

         // Show PowerPoint. 
         app.Visible = Microsoft.Office.Core.MsoTriState.msoTrue;

         // Open a presentation.
         Microsoft.Office.Interop.PowerPoint.Presentations ppPres = app.Presentations;
         Microsoft.Office.Interop.PowerPoint.Presentation pres = ppPres.Open(presPath, MsoTriState.msoFalse, MsoTriState.msoTrue, MsoTriState.msoTrue);

         // Show presentation.
         pres.SlideShowSettings.Run();

// Here read a command from serial port (for example the ASCII char 'N' for next and 'P' for previous) and call
// pres.SlideShowWindow.View.Next(); or pres.SlideShowWindow.View.Next();

The previous code is in C# and some exception control should be added but is an example.