Having a problem getting Excel to work from my .Net VB Program
 

This should be a simple question for those of you who do this all the time. I
have a web based report that I need to allow the user to export to Excel. I
followed all the instructions from Microsoft web based knowledge areas and
included the COM Excel 9.0 library. I issued the following code:
================================================== ==
Private xlapp as Excel.Applicaiton
Private xlsheet as Excel.Worksheet
....
xlapp = GetXLApp() '<== Error happens in this function
xlapp.Workbooks.Add()

The function GetXLApp is below:

Public Function GetXLApp() As Object
Try

GetXLApp = CreateObject("Excel.Application") ' <== Returns error
GetXLApp.Visible = True

Catch ex As Exception
lblStatus.Text = Trim(ex.ToString)
End Try
End Function

================================================== =

The error message is:
System.NullReferenceException: Object reference not set to an instance of an
object. at QueMgmtReport.Queue.Activity_Report() in
\\net-plan\wwwroot$\QueMgmtReport\Queue.aspx.vb:line 158