All Teradata access modules use the Identification function for version information. This function is requested as the second parameter (OptParms) in the main function called PIDMMain(). This main function is called by the Data Connector. The Data Connector displays this information in its log file and is available to the client utility to record in its log file.
For the Teradata OLE DB Access Module, product information can be found by accessing Start > Control Panel > Add or Remove Programs, or in the About menu in the dialog box.