This release - includes MMTTY version 1.70G (tnx to Oba JA7UDE, Ken VE5KC, and Joe W4TV) *** supports COM1 through COM64 *** prevents divide by zero errors *** accepts a message to set the soundcard source channel to mono, left, or right - provides the option to select up to 64 serial ports for PTT RX-TX switching, CW generation, FSK generation, and TNC control (tnx to Tom KQ5S, and Joe W4TV) - provides the ability to direct the MMTTY engine to demodulate RTTY from a specified soundcard channel (tnx to Joe W4TV) - provides a RTTYChannel macro that can specify from which soundcard channel RTTY audio is demodulated (tnx to Joe W4TV) - updates the Configuration.htm, CW.htm, Macros.htm, PTTConfiguration.jpg, PTTSettings.htm, RTTYModemConfiguration.jpg, SoundcardSettings.htm, SoundcardRTTYConfiguration.jpg, and SoundcardRTTYSettings.htm documentation files Notes: 1. Depending upon the version of Windows you're running and the level of security you have configured, upgrading to WinWarbler 8.8.7 may cause the Windows "User Account Control" (UAC) subsystem to seek your permission for a change to be made to your computer. The specific change being made is the registration of a new component that WinWarbler now uses to access the TNC serial port. If this request appears on your monitor, the upgrade will not proceed until you respond. If you do not authorize UAC to allow the change, WinWarbler 8.8.7 will not work correctly. 2. MMTTY version 1.70G is considered to be in "beta test"; a production release will follow the acceptance of changes by the MMTTY open source committers 3. Update your firewall and anti-malware applications to consider this new version of WinWarbler to be "safe" 4. If this upgrade doesn't work correctly, see the "After an Upgrade" section of 5. After upgrading, to revert to the previous version of WinWarbler, see WinWarbler 8.8.7 is available via the DXLab Launcher or via 73, Dave, AA6YQ