Al,
as far as I know, the Siemens external prommer (beit the parallel port one or the USB one) only works with Siemens modules and with Siemens software (Step5 and Step7, not Step7 micro). There's a (very) slight chance some third party software vendors making Siemens-compatible packages can use it as well, but knowing the protectionism Siemens normally shows I seriously doubt that.
Kind regards,