SWXCR BIOS :

  The BIOS provides access for up to 8 logical drives per SWXCR, under
  DOS ver 5.0 and above. The total DOS partition size is limited to 
  1024 cylinders (BIOS limit) and hence it does not make sense to have
  a system drive of more than 2048 MB, if it is used only for DOS. The
  maximum size of any DOS partition cannot be more than 1023 cylinders
  or 2046MB.



  DOS Driver :

  The BIOS on the SWXCR is usable only under the real mode of the
  operating system. In order to use the SWXCR under memory managers
  like Windows, QEMM etc., a DOS driver needs to be used. The  
  DOS driver, SWXCRWIN.SYS supports only disk drives. The total DOS 
  partition size on the SWXCR is limited to 2048 MB, even when the 
  DOS driver is used.


  ASPI Driver :

  If non disk devices are connected, use the ASPI driver ASPIDAC.SYS 
  under DOS, to access these devices. Note that the ASPI driver works 
  only WITHOUT any memory managers like Windows 3.1, QEMM  etc.
  The ASPIDAC.SYS works in conjunction with the DOS driver, SWXCRWIN.SYS.


  CDROM Driver :

  Also a CDROM driver DAFCDA.SYS is included, to allow CDROM access under 
  DOS, using a MSCDEX driver. The DAFCDA.SYS works in conjunction with the 
  ASPI driver, ASPIDAC.SYS.


  Installation :

  If SWXCR is the only disk controller in the system, use DOS 
  "fdisk" to create a DOS partition and use DOS "format c: /s " 
  to high level format the DOS partition. Boot from the SWXCR
  disk.

  Copy the driver file, SWXCRWIN.SYS from the SWXCR DOS driver 
  diskette to the root directory of the boot disk. Optionally,
  copy the driver file ASPIDAC.SYS (ASPI driver) and DAFCDA.SYS 
  (CDROM driver) to the root directory of the boot disk.

  The SWXCR DOS, ASPI and CDROM drivers are installed with the help 
  of CONFIG.SYS. 

  The following lines are put in the CONFIG.SYS file to install the 
  SWXCR DOS, ASPI and CDROM driver.
  
  DEVICE={DRIVE}:SWXCRWIN.SYS
  DEVICE={DRIVE}:ASPIDAC.SYS
  DEVICE={DRIVE}:DAFCDA.SYS

  In order to use the CDROM as a logical drive under DOS, the autoexec.bat
  file needs to load the MSCDEX driver as follows:

  {DRIVE}:MSCDEX /V /M:10 /D:MSCD001

  Note :   MSCDEX  is  available  in  DOS 6.0  or  supplied by CDROM 
  manufacturers.

  All the above statements need to be put before any line loading the 
  memory manager, like himem.sys, qemm.sys, emm386.exe etc. 

  SWXCRWIN.SYS, ASPIDAC.SYS and DAFCDA.SYS should always be installed in 
  real memory and never in high, expanded or extended memory.

  If using another disk controller with SWXCR, make sure all the 
  drivers associated with the other disk controller are loaded before 
  the SWXCR DOS driver.


  Known Bugs/Limitations :

  ASPIDAC.SYS and DAFCDA.SYS should not be used in Windows 3.x, QEMM
  etc..

  None of these drivers can be loaded in upper or high memory.

  ASPIDAC.SYS will behave unpredicatbly, under an "installation
  abort" condition or on a controller that has no drives connected to 
  it. Do not use ASPIDAC.SYS when installation abort error is reported by 
  BIOS.