Int 2F Fn 4A11  - Dblspace.bin - "swap Drive" - Swap Drive Letters Of Cvf  [k]

   AX = 4A11h
   BX = 0002h
   DL = drive number (0=A:) of compressed drive to swap with its host

Return: AX = status (0000h,0101h,0102h,0103h) (see #2490)

Note:  this function is intended for use by DBLSPACE.EXE only

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