I hope this helps as I do not know Intouch, but I assume it has a script function(Be it JVS or VBS)
Using an OLE connection you could retrieve data EG:
'Create connection with access server
Set objConn = CreateObject("ADODB.Connection") 'Create object for sql connection
objConn.ConnectionTimeout = 25
objConn.Open "Provider=microsoft.jet.oledb.4.0;data source=C:\YourDB;"
'Create the command send to server
Set objCMD = CreateObject("ADODB.Recordset") 'Create cammand object for Acces querie
Set objCMD.ActiveConnection = objConn 'Pointer to show cammand which connection to use
objCMD.Open "Select* from [Your_table] where (ColumbName = '" + Value + "')"
' objCMD.CommandType = 1 'adCmdtext
Your_Internal_Tag = objCMD("Value")
objConn.Close
Set objConn = Nothing
Set objCMD = Nothing
Set objParams = Nothing
Remember This is only an example script