Please send all trouble reports to feedback@w1hkj.com or one of the online support groups. Mentor assistance is available on the following online forums @ groups.io: * linuxham - primarily for Linux and OS X users * nbems - support for using the entire suite in an EMCOMM environment all operating systems * win-fldigi - Windows users The file sha256vals.txt contains the sha256 checksum value associated with each Windows installation file. On Windows check the sha256sum using the executable sha256sum.exe in the sha256sum.exe.zip file. This is a command line tool and works fine on Windows 10 from the PowerShell command line.