SES_ESC_UNSUPPORTED
if (status != SES_ESC_UNSUPPORTED &&
prevstatus = SES_ESC_UNSUPPORTED;
status = SES_ESC_UNSUPPORTED;
((s) == SES_ESC_UNSUPPORTED || (s) >= SES_ESC_NOT_INSTALLED)
status = SES_ESC_UNSUPPORTED;