Tom-

I have been working on a simmilar problem that seems to be machine specific.

Even running the code from Microsoft in your second reference to this
answer(shown below), my machine will not release the reference and Task
Manager holds on to the instance(EXCEL.EXE)??run it 5 times get 5 instances
that do not go away...

I have cut & pasted to another PC and it works the way you and MS say it
should.

I have unloaded all Addins in Excel and VBE.

Rebooted and have "nothing" else running.

"nothing" = MSspyware beta & Norton Systemworks 2005

I'm running XP pro & XL2003

Any Ideas where to look next?

CODE From Site:

Option Explicit

Private Sub Command1_Click()
Dim xlApp As Excel.Application
Dim xlBook As Excel.Workbook
Dim xlSheet As Excel.Worksheet
Set xlApp = CreateObject("Excel.Application")
Set xlBook = xlApp.Workbooks.Add
Set xlSheet = xlBook.Worksheets("Sheet1")
xlSheet.Range(xlSheet.Cells(1, 1), xlSheet.Cells(10, 2)).Value =
"Hello"
xlBook.Saved = True
XlBook.close
Set xlSheet = Nothing
Set xlBook = Nothing
xlApp.Quit
Set xlApp = Nothing
End Sub

"Tom Ogilvy" wrote:

http://support.microsoft.com/default...b;en-us;178510
PRB: Excel Automation Fails Second Time Code Runs

http://support.microsoft.com/default...b;EN-US;189618
PRB: Automation Error Calling Unqualified Method or Property


http://support.microsoft.com/?kbid=199219
XL2000: Automation Doesn't Release Excel Object from Memory


--
Regards,
Tom Ogilvy

"Gérard Ducouret" wrote in message
...
Hello
I'm trying to create a new instance of Excel (from MS Project) with the
following :

Set XLApp = New Excel.Application
If XLApp Is Nothing Then
Set XLApp = New Excel.Application
End If

then to close it by :
XLApp.Workbooks.Close
Set XLApp = Nothing

but all the Excel instances remain opened : in the Tasks Manager of Win
2000
I have as many EXCEL instances than I ran the macro.

Thanks for help,

Gérard Ducouret