VM xpsp3 recover console add symmpi scsi driver

test environment  virtualbox 4.2.6  xp sp3 install

1.  use xpsp3 cdrom
     x:\i386\winnt32.exe /cmdcons
2.  copy A:\symmpi.sys  c:\cmdcons
3.  attrib -h -r -s c:\cmdcons\txtsetup.sif
    notepad c:\cmdcons\txtsetup.sif
  in [scsi.load]    add
    symmpi = symmpi.sys
  in [HardwareIdsDatabase]
    PCI\VEN_1000&DEV_0030 = "symmpi" 

after above setup , you never need to press F6 at recover console booting