This installer is only for Real-DOS of DS-XG.  

Type "install", then it allows you to install 
DOS setup utility and TSR for Real-DOS environment. 
It requires PC/PCI (so called SBLink) or DDMA support 
of PCI Chipset.  

It is possible to customize the default of "setupds.exe" 
by editing "ds.ini'. 

"setupds.exe" supoorts INTEL PIIX4, PIIX3 and ALI Aladdin4 
as chipset that supports DDMA and PC/PCI.  
