
What's New in the MS-DOS 6.2 Upgrade
------------------------------------

The MS-DOS 6.2 Upgrade includes a new disk-repair utility and several other 
new features. It also improves on some of the features that were introduced 
with MS-DOS 6. The goal of MS-DOS 6.2 is keep your data safe, to make 
DoubleSpace simpler to use, and to make it easier to troubleshoot hardware 
and software problems. 

Before you set up MS-DOS 6.2, read the "Getting Started" chapter in your 
Microsoft MS-DOS 6 User's Guide, as well as the README.TXT file (which 
is located in the directory that contains your MS-DOS files). Also, make 
sure you have a recent backup copy of any valuable data.

New Features
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* ScanFix is a new utility that detects, diagnoses, and repairs disk errors 
  on uncompressed drives and DoubleSpace compressed drives. ScanFix keeps a 
  log of its repairs and enables you to undo any of the changes it made. For 
  more information about ScanFix, type HELP SCANFIX at the command prompt.

* MS-DOS 6.0 introduced the capability to skip or carry out individual 
  commands in your CONFIG.SYS file. MS-DOS 6.2 extends this capability 
  to your AUTOEXEC.BAT and other batch files. This feature makes it easier 
  to isolate problems when you are troubleshooting. For more information, 
  type HELP CONFIG.SYS at the command prompt.

* MS-DOS 6.2 enables you to bypass DoubleSpace when you start your computer. 
  This makes troubleshooting easier and also temporarily frees memory for use 
  by other applications. For more information, type HELP CONFIG.SYS at the 
  command prompt.

Improvements To DoubleSpace
---------------------------
* DoubleSpace includes a new feature called DoubleGuard, which protects 
  against data corruption by verifying data integrity before writing it to 
  your disk. Although DoubleGuard is on by default, you can turn it off to 
  save memory. For more information about DoubleGuard, type HELP DBLSPACE 
  /DOUBLEGUARD at the command prompt.

* DoubleSpace checks for bad sectors on your disk before it begins 
  compression. To do this, DoubleSpace starts ScanFix. If ScanFix detects 
  unreliable sectors, it moves the data on those sectors to a reliable part 
  of your disk before DoubleSpace begins compressing the drive.

* With MS-DOS 6.2, you can easily uncompress any DoubleSpace drive or even 
  completely uninstall DoubleSpace. For more information, type HELP DBLSPACE 
  /UNCOMPRESS at the command prompt.

* DoubleSpace automatically mounts compressed floppy disks and other 
  compressed removable media. 

Improved Features
-----------------
* SMARTDrive now loads as a read-only cache by default. If you enable 
  write-caching, MS-DOS does not display the command prompt until SMARTDrive 
  has written its cache to your disk. This prevents you from turning off 
  your computer before the data in memory is saved. SMARTDrive also includes 
  support for read-caching CD-ROM drives.

* Microsoft Defragmenter can now defragment disks containing approximately 
  twice as many files as before. The improved Defragmenter can process 
  approximately 20,000 files.  

* The MOVE, COPY, and XCOPY commands now ask you for confirmation before 
  copying a file over another file that has the same name. (However, when 
  issued from a batch file, these commands do not prompt for confirmation
  before overwriting a file.)

* The DISKCOPY command now uses your hard disk as an interim storage area, 
  which makes copying from one floppy disk to another faster and easier.

* The output of the DIR, MEM, CHKDSK, and FORMAT commands now includes 
  thousands separators when displaying numbers greater than 999. For 
  example "1000000 bytes free" now reads as "1,000,000 bytes free."
