Hi, I have Windows VISTA and I using DX-Base 2007 very good, I want to try to use a Internal CW, at moment I have a Home Made Interface with DTR and RTS pin connector, but doen't work with DX base, but work fine with other software (MixW, Win-Test) Why? DX-Base use DTR or RTS pins for a CW out?? Best 73 de IZ7AUH Frank