Although it is a "Windows application", Sdtty does not use the
mouse while running. It looks rather like the Command Prompt window.
Sd runs only on Windows 95, Windows 98, and NT 4.0.
Users of DOS, Windows 3.1, or NT 3.51 can only run Sdtty, and need to run a
special version, identified by the installation
file being `install3.exe' instead of `install.exe'. (If you use DOS,
Windows 3.1, or NT 3.51, be sure to download the correct version of the program from the
web, or request the correct version when ordering it on diskette.)
Sd and Sdtty are identical in their behavior with respect
to square dance calling.
Sd and Sdtty are believed to be
insensitive to slight inaccuracies in floating-point division.
It should operate correctly with early Pentium chips.
The program is mostly "Year 2000 Compliant", but some care will be
needed. File names created with the special names * and +
contain only the last two digits of the year. We therefore recommend that you
delete old files at least every 75 years or so.
The date printed at the top of each sequence contains the full 4-digit year, so there should be little danger of calling a 100-year-old card without realizing it. Callers are nevertheless urged to be careful, since some dancers have extraordinarily long memories.
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