Does anyone have any experience with MMTTY using FSK, Win 7 and DX4WIN? I get MMTTY to work alone but I cannot get EXTFSK to start with MMTTY under DX4WIN so no FSK transmit; receiver is OK. Yes, I just upgraded and I am trying to get everything working again. Thanks for your help and patience. William Osborne, K5ZQ wosborne44 at gmail.com 618 967 0252