Dreamweaver3

REGEDIT4

[HKEY_CLASSES_ROOT\ultxfile\Format\MSHO0FLE]
"open"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,10,00,08,08,00,00,10,00,\
  00,00,00,00,00,00,00,00,00,00,00,00,00,00