Int 2F Fn 4A11  U - Dblspace.bin - Get Relocation Size                     [k]

   AX = 4A11h
   BX = FFFFh

Return: AX = number of paragraphs needed by DBLSPACE.BIN

Note:  used by DBLSPACE.SYS to relocate the DBLSPACE driver to its final
     position in memory
   this function is also supported by the version of SuperStor bundled
     with IBM DOS 6.x and "preloading" versions of Stacker

See Also: AX=4A11h/BX=0000h,AX=4A11h/BX=FFFEh