No, it is not possible. I asked the same question here about a year ago and the authors did not answer. 73, Zoli HA1AG > Sent: Tuesday, March 29, 2005 23:17 > Subject: [WriteLog] SO2R with XP? (A/B bit on LPT port) > > > > Does SO2R A/B bit on LPT port operate > correctly under XP ?? > > 73, Gord VE6SV