Sending KeyStrokes to operate Microsoft powerpoint slides

Hi I want to operate microsoft powerpoint slides by sending key strokes to operating system xp or windows 7 please help me out开发者_如何学JAVA ..

If you're writing in C# would you not be better using the PowerPoint COM interfaces http://msdn.microsoft.com/en-us/library/microsoft.office.interop.powerpoint.aspx to control it programmatically?