Int 5B Fn 5254  U - Sitback V3.02r - Get ???                               [U]

   AX = 5254h
   DL = 04h

Return: ES:BX -> ??? in resident portion
Program: SitBack is a background file backup utility by SitBack Technologies,
     Inc. which initiates backups whenever the system is idle

See Also: AX=8485h/DL=71h,AX=8485h/DL=72h