How Do I Create an Excel 2007 Workbook Programatically
 

I am writing a tool in VStudio 2005 which needs to generate an Excel 2007
workbook programatically. I have done this many times in the past with
previous versions of Excel without problems. However, with the Excel 12
object library when I attempt to instantiate the Excel.Application object, a
System.UnauthorizedAccessException is thrown and the error 80070005 is
reported.
What is the trick to doing this?