dst to svg conversion is mainly related to attempts to export Tajima embroideries to SVG graphics. It should be possible to export Tajima Embroideries (.dst) to a XML based graphics (.svg) with programs like Embroidermodder 2. The resulting file won't be useable in any sewing or stitching machine however, just good for editing with some vector graphics editor.
Open DST file Open SVG fileAdvanced version of the popular Embroidermodder