drvspace.txt

Dos6.22安装软件,现在使用Dos的朋友不是很多了,希望能大家一些方便.

DRVSPACE.TXT
============


Welcome to Microsoft(R) MS-DOS(R), the most widely used operating system for 
personal computers. This version of MS-DOS includes many new features that 
turn your computer into a powerful tool for business or personal use. 

This file, the Microsoft MS-DOS User's Guide Addendum, briefly describes 
features new to MS-DOS 6.22 and explains how to use Microsoft DriveSpace 
integrated compression. 

If this version of MS-DOS is not yet set up on your computer, see the chapter 
"Getting Started" in the Microsoft MS-DOS User's Guide for information about 
how to use the Setup program. 


Table of Contents
-----------------
   New Features of MS-DOS 6.22
   Freeing Disk Space by Using DriveSpace
   Getting Help
   Setting Up DriveSpace
      Using Express Setup
      Using Custom Setup
	 If you chose to compress an existing drive
	 If you chose to create a new compressed drive
   Understanding Disk Compression
      Compressed Volume Files and Host Drives
      How DriveSpace Calculates Free Space on a Compressed Drive
   Using DriveSpace to Manage Compressed Drives
   Compressing Additional Drives
      Compressing an Existing Drive
      Creating a New Compressed Drive
   Using DriveSpace with Floppy Disks
      Compressing a Floppy Disk
      Using a Compressed Floppy Disk
	  Using Compressed Floppy Disks Without Automounting
   Getting Information About Compressed Drives
   Understanding DriveSpace and Memory
   Getting More Information About DriveSpace
   Troubleshooting DriveSpace


New Features of MS-DOS 6.22
===========================
MS-DOS 6.22 includes Microsoft DriveSpace, integrated disk compression 
that increases your available disk space by compressing files. DriveSpace 
appears similar to DoubleSpace, which was included with some earlier versions 
of MS-DOS; however, DriveSpace stores compressed information in a different 
format. For more information about DriveSpace, see the following section. 
(If you are currently using DoubleSpace, type HELP DBLSPACE at the MS-DOS 
command prompt for information about using DoubleSpace with MS-DOS 6.22.)

MS-DOS 6.22 DriveSpace also includes several new safety and convenience 
features that were not in MS-DOS 6 DoubleSpace. For more information, type 
HELP WHATSNEW at the MS-DOS command prompt, and then press ENTER.
For information about other new features of MS-DOS, see the "Welcome" 
chapter of the the Microsoft MS-DOS User's Guide or type HELP WHATSNEW
at the MS-DOS command prompt, and then press ENTER.

Freeing Disk Space by Using DriveSpace
======================================
DriveSpace frees space on hard and floppy disks by compressing the data that 
is on them. DriveSpace is easy to set up and use. For instructions on setting 
up DriveSpace, see "Setting Up DriveSpace" later in this file. After you set 
up DriveSpace, your disk will have 50 to 100 percent more free space. 

After you set up DriveSpace, you can maintain your compressed drives by using 
the full-screen DriveSpace maintenance program or by typing commands at the 
MS-DOS command prompt. For information about using the DriveSpace program to 
manage compressed drives, see "Using DriveSpace to Manage Compressed Drives" 
later in this file. For more information about managing compressed drives 
from the MS-DOS command prompt, type HELP DRVSPACE at the command prompt. 
For information about checking a compressed drive for disk errors, type 
HELP SCANDISK at the MS-DOS command prompt.

You can also use DriveSpace to compress floppy disks, removable-media drives, 
or additional hard disk drives. For more information, see "Compressing 
Additional Drives" later in this file. 

The rest of this file explains how to set up and use DriveSpace. 

Getting Help
============
DriveSpace includes extensive online help for commands, dialog boxes, and 
procedures. 

To get help while running DriveSpace:

 *  Press F1 when a DriveSpace screen, dialog box, or error message appears. 

To get help about the DRVSPACE command:

 *  Type HELP DRVSPACE at the command prompt. 

Setting Up DriveSpace
=====================
When you run DriveSpace for the first time, the DriveSpace Setup program 
starts. DriveSpace Setup compresses the data on the drive you select. After 
DriveSpace Setup is complete, your disk will have 50 to 100 percent more 
free space than it did before. 

Note  After you run DriveSpace Setup, you cannot use the Uninstall program 
      to restore your previous version of DOS. Do not set up DriveSpace 
      if you want to be able to use the Uninstall program. 

During DriveSpace Setup, you can select either Express Setup or Custom Setup. 
To compress the existing files on drive C and have DriveSpace determine the 
compression settings for you, choose Express Setup. To compress a hard disk 
drive other than drive C, or to use the empty space on an existing drive to 
create a new compressed drive, choose Custom Setup. When you use Custom Setup, 
you can determine compression settings yourself. For more information about 
running Custom Setup, see "Using Custom Setup" later in this file. 
The following sections explain each setup method.

Using Express Setup
-------------------
Express Setup is the easiest way to install DriveSpace. It compresses the 
existing files on drive C. (To compress the files on a drive other than C, 
use Custom Setup. For more information, see the following section.) 

Note  Before you run Express Setup, you should back up the files on drive C. 
      For information about using Microsoft Backup, see the chapter 
      "Managing Your System" in the Microsoft MS-DOS User's Guide. 

To install DriveSpace by using Express Setup:

1. Quit all running programs (including Windows). If you use a network, 
   start the network software and connect to any drives you usually use. 

2. Type DRVSPACE at the command prompt. The Welcome screen appears. 

3. To continue DriveSpace, press ENTER. 

   DriveSpace displays a screen that prompts you to choose between Express 
   and Custom Setup. 

4. Choose Express Setup by pressing ENTER. 

   DriveSpace displays a confirmation screen that estimates the amount of 
   time it will take to compress drive C. 

5. To compress drive C, press C. 

DriveSpace checks drive C for disk errors, and then defragments and 
compresses drive C. This process can take from several minutes to several 
hours, depending on the speed of your hard disk and processor and the 
amount of data your hard disk contains. Because DriveSpace checks and 
rechecks the validity of the data as it compresses your files, the process 
is very safe. In fact, if the compression process is accidentally 
interrupted (for example, by a power outage), DriveSpace will recover and 
continue without losing any data. During the compression process, DriveSpace 
Setup restarts your computer twice. 

When DriveSpace Setup is complete, it displays a screen that shows how long 
the compression process took and how much free space your new drive contains. 
To quit DriveSpace after it has compressed drive C, press ENTER. 

After you set up DriveSpace, your computer's drives will be configured 
differently: 

 *  Drive C will be compressed and will contain more free space than it 
    did before. You will use drive C just as you did before you set up 
    DriveSpace. 

 *  Your computer will have a new drive that is not compressed. This drive 
    is used to store files that must remain uncompressed. For example, the 
    Windows permanent swap file does not work properly when it is compressed; 
    if your Windows permanent swap file was previously located on drive C, 
    DriveSpace moves it to the new uncompressed drive. 

DriveSpace also uses the new uncompressed drive to store important system 
files such as IO.SYS, MSDOS.SYS, DRVSPACE.BIN, DRVSPACE.INI, and DRVSPACE.000. 
If you try to list the files on this drive, it will probably appear empty. 
This is because most of the files it contains have the Hidden attribute; 
many also have the Read-Only attribute. To view the files, type DIR /A at 
the command prompt. 

CAUTION   Do not tamper with the hidden files on the new drive. If you change 
	  or delete these files, you might lose all the files on drive C. 

For information about adjusting the configuration of your compressed drive, 
see "Using DriveSpace to Manage Compressed Drives" later in this file. For 
information about compressing additional drives, see "Compressing Additional 
Drives" later in this file. For information about compressing floppy disks, 
see "Using DriveSpace with Floppy Disks" later in this file.