I'm trying to test for an existing instance of Excel already running.

In my VB6 code I do the following:

Dim oExcel As Object
Set oExcel = CreateObject("Excel.Application")

If Excel were already running I would do this:
Set oExcel = GetObject(, "Excel.Application")

How can I test to see if Excel is already running? I've found some examples
but they were a bit convoluted.

Thanks for any help.

Kevin