With effect from V21, 1 January 2019, SD by EI5DI is free and unrestricted.
No registration or key file is required. SD will continue to be
updated, and users can request help by emailing sd-user (at) contesting.com.
V21 is available now from www.ei5di.com
When you install or update SD, you will probably have to resize its window
to suit your screen - see GETTING STARTED on page 3 of the manual SD.PDF.
If you find bugs, send the details to sd-user (at) contesting.com
Earlier versions of SD are not supported, so please confirm that any
still exists in V21
SD-User mailing list