This is the error I am getting.

Error Type:
Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC Microsoft Access Driver] Could not use '(unknown)'; file already in use.
/comprobante/test.asp, line 5

what does your code say on line 5?

This is the code Dreamweaver generate.

<!--#include file="Connections/test.asp" -->
<%
var Recordset1 = Server.CreateObject("ADODB.Recordset");
Recordset1.ActiveConnection = MM_test_STRING;
Recordset1.Source = "SELECT * FROM suplidores";
Recordset1.CursorType = 0;
Recordset1.CursorLocation = 2;
Recordset1.LockType = 1;
Recordset1.Open();
var Recordset1_numRows = 0;
%>
<%
var Repeat1__numRows = 10;
var Repeat1__index = 0;
Recordset1_numRows += Repeat1__numRows;
%>

The issue is in test.asp your connection string appears to be wrong. please post the contents of connections/test.asp