OLEDB Provider adds spaces

Question

Hi,
as the this small prodedure demonstrates, the Oracle OLEDB Provider attaches some blanks to the constant read by the Sql-statement.
On the  opposite the Microsoft Provider MSDAORA does what normally would be expected, it only prints out 1 single character.
What is the problem, is there something to configure ?  The blankadding behaviour causes unnecessary problems.
The Oracle OLEDB Provider seems to have some problem with blanks, sometimes it adds some, sometimes it removes some.
Thanx.
Best regards
Dirk
Output Oracle provider ( with the crazy blanks following the F ) :
Used Provider OraOLEDB.Oracle.1
AttributeName : MARKER Value : -F                               -            
AttributeName : TRIMMED_MARKER Value : -F-
Output using the Microsft Provider :
Used Provider : MSDAORA.1
AttributeName : MARKER Value : -F-
AttributeName : TRIMMED_MARKER Value : -F-
Demo Procedure :
Sub Show_Blank_Problem()
Dim rs             As ADODB.Recordset
Dim strSQL     As String
Dim i              As Integer
Dim ConnectString  As String
    ConnectString = "Provider=MSDAORA; Data Source=MyOraDB;"
    ' ConnectString = "Provider=OraOLEDB.Oracle.1;Persist Security Info=False;Data Source=MyOraDB;Extended Properties="""" "
    Set OraConnect = New ADODB.Connection
    OraConnect.Open ConnectString, "scott", "tiger"
    strSQL = " select 'F' as Marker, Trim( 'F' ) as Trimmed_Marker from Dual "
    Set rs = New ADODB.Recordset
    rs.CursorLocation = adUseClient
    rs.Open strSQL, OraConnect, adOpenStatic, adLockReadOnly
    If rs.BOF And rs.EOF Then
        Debug.Print "No Data Found!"
        rs.Close
        Exit Sub
    End If
    Debug.Print "Used Provider : " & OraConnect.Provider
    Do While Not rs.EOF
        For i = 0 To (rs.Fields.Count - 1)
            Debug.Print "AttributeName : " & CStr(rs.Fields(i).Name) & " Value : " & "-" & rs.Fields(i) & "-"
        Next i
       rs.MoveNext
    Loop
    rs.Close
End Sub

Answer 1

To use 32 bit oraoledb, you'll need to set IIS to run in 32 bit mode.
Or, install 64 bit oledb/client instead.
Hope it helps,
Greg