VB6 "SaveAs" not working in Win8

VB6 program developed under XP.
Program installed on Windows 8 machine.
Program constructs an Excel spreadsheet, and saves it.

When program first loads, one bookkeeping chore is to determine the Excel version resident. The following code lines determine the value of variable "iXLVersion", which is used for "FileFormat" in the "SaveAs".

Set oXLApp = CreateObject("Excel.Application")
If oXLApp.Application.Version > "11.0" Then
    iXLVersion = 56
Else
    iXLVersion = -4143
End If
Set oXLApp = Nothing

Select allOpen in new window

The following code generates the spreadsheet and saves it:

Set oXLApp = CreateObject("Excel.Application")
Set oXLBook = oXLApp.Workbooks.Add
Set oXLSheet = oXLBook.Worksheets(1)
sWorkbookName = "DataPlayers.sdp"
With oXLApp
'
' Code here loads up the spreadsheet
'
End With
oXLBook.SaveAs App.Path & "\" & sWorkbookName, FileFormat:=iXLVersion
oXLApp.Quit
Set oXLApp = Nothing
Set oXLBook = Nothing
Set oXLSheet = Nothing

Select allOpen in new window

Problem: When this program is run on Windows 8, user reports that the generated spreadsheet is not saved.