drvspace.hlp

DOS的一些基础工具

How %N Allocates Memory for Drives
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Each time you start your computer, %N allocates a certain amount of memory for mounting drives: about 100 bytes of memory for each compressed drive that is currently mounted plus 96 bytes for each removable-media drive defined in the %N Options dialog. When you create or mount additional drives, %N uses up 96 bytes of memory for each drive. 

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 Help -- Restart Now?

%N made some temporary changes to your AUTOEXEC.BAT file to ensure that %N could restart if it was interrupted while resizing your compressed drive. %N has restored your original AUTOEXEC.BAT and CONFIG.SYS files, but needs to restart your computer so that the settings in those files can take effect.

To restart your computer now, choose Yes.

To continue working with %N, choose No. You will return to the main %N screen. When you quit %N, your computer will restart automatically. 

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 Help -- Retry 

There is no disk in the drive you selected.

To continue, insert the disk in the drive, and then choose the Retry button.

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 Help -- No Available Drive Letters

%N cannot mount or compress any more drives because no more drive letters are available.

To make more drive letters available for %N's use, choose the Options command from the Tools menu. Then, in the %N Options dialog box, choose a higher drive letter in the "Last drive letter for %N's use" box. Each drive letter uses 96 bytes of memory, so do not allocate more drive letters than you need. 

You can also increase the number of available drive letters by unmounting compressed drives or by disconnecting network drives.

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 Help -- Working with Your Startup Drive

%N does not allow you to unmount, delete, or format your startup drive. If you were to unmount, delete, or format your startup drive, your computer would not start properly.

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 Help -- Error Message

There are no unmounted drives on your computer.

You have chosen to mount a compressed drive. However, there are no unmounted compressed drives on your computer. 

An unmounted drive appears on your disk as a hidden file with a filename in the form %S.nnn (for example, %S.001). This file is called a "compressed volume file"~HL84~. Once the file is mounted, it is available for use as a compressed drive, and any compressed files it contains become available.

If you previously unmounted a compressed drive and were trying to remount it when you received this error message, make sure that you did not accidentally delete the compressed volume file. (For a list of hidden files, type the DIR /AH command at the command prompt.)

If you suspect the compressed volume file has been deleted, try using the UNDELETE command to restore it. For more information, type HELP UNDELETE at the command prompt.

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 Help -- Disk Errors Found

%N has detected crosslinked files, lost clusters or other errors on the specified compressed drive.

To fix the errors, quit %N, and then run the ScanDisk program on this drive. For more information about ScanDisk, type HELP SCANDISK at the command prompt.


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 Help -- Remove Floppy Disk

Your startup floppy disk drive currently contains a floppy disk. 
If the power fails or if your computer is accidentally restarted, %N can recover automatically and continue compressing your drive. However, for %N to continue properly, your computer must start from the hard disk rather than from a floppy disk.

Remove the floppy disk from the drive and then choose the Retry button.


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 Help -- Invalid Free Space

The amount of free space you requested is invalid for one of the following reasons:

 * The number you entered is too small or too large. The number 
   must be no smaller than the uncompressed drive's Minimum Free 
   Space value and no larger than the uncompressed drive's Maximum 
   Free Space value.

 * The value you typed contains invalid characters. You must enter 
   a number. Do not use an additional character, such as a comma or 
   space, to separate thousands.

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 Help -- Too Fragmented to Resize

%N cannot resize this drive because the drive is too fragmented. To defragment the drive now, choose Yes. %N will then start the Microsoft Defragmenter. When Defragmenter is complete, you should be able to resize the drive.

Note: If this drive contains copy-protected software, choose 
      No. Defragmenting the drive might damage the copy-
      protection mechanism, which would prevent you from 
      running that software.

If %N has just finished running the Microsoft Defragmenter and is now displaying this dialog again, then Defragmenter was unable to solve the problem. Quit %N and run ScanDisk on this drive. Then, try resizing the drive again.

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 Help -- Invalid Ratio

The ratio you requested is invalid for one of the following reasons:

 * The ratio you entered is too small or too large. The number 
   must be within the range displayed in the Change Compression 
   Ratio dialog box.

 * The value you typed contains invalid characters. You must enter 
   a number.

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 Help -- File Access Error

%N cannot continue because it is unable to find or gain access to the specified file. 

If %N was unable to find the file, the problem could be that the file is in a nonstandard location. If you know where this file is located, use the MS-DOS COPY command to copy the file from its current location to the directory that contains your MS-DOS files. Then restart %N and try your task again.

If %N found the file but was unable to gain access to it, a disk error might be causing the problem. To fix any disk errors, run ScanDisk on the drive that contains the file.

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 Help -- Damaged Drive

Your computer was unexpectedly restarted, and now %N cannot remount the specified drive. This could be due to a disk error that damaged the drive's HOTLINK("compressed volume file",hlCVF).

To fix the error, quit %N, and then run ScanDisk on the compressed volume file for the specified drive. For example, if the compressed volume filename is C:\%S.001, you would type the following at the command prompt:

   SCANDISK C:\%S.001

The compressed volume file is a hidden file; to see it, type DIR /A in the root directory of your uncompressed (host) drive.

When ScanDisk completes, run %N and try mounting the drive again.

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 Help -- Error

%N has encountered an error. For additional information, see the %N section of the README.TXT file. 

The README.TXT file is located in the directory that contains your MS-DOS files. (A copy of README.TXT is also located on Setup Disk 1.)

To view the README.TXT file, use a text editor such as MS-DOS Editor. For example, if your MS-DOS files are in the C:\DOS directory, you could view the README.TXT file by typing the following at the command prompt:

   EDIT C:\DOS\README.TXT

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 Help -- Drive is Full

%N has compressed as many of the files on this drive as possible. However, there was not enough space to compress all the files. The files that were not compressed are still on the uncompressed drive, which now has a new drive letter.

To move those files to the compressed drive, you must move them to a different drive or onto a floppy disk, delete them from the uncompressed drive, enlarge the compressed drive, and then copy the files onto the compressed drive. For information about how to do this, see the %N section of the README.TXT file.

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 Help -- Startup Drive is Full

%N Setup cannot continue because there is not enough space on your startup drive. 

Use the DEL command to delete unnecessary files from your startup drive until there is enough space. To find out how much free space is on the drive, type the DIR command.

Caution: If you are not sure what a file's function is, do 
         not delete it. For a list of files you can safely 
         delete, see the Freeing Disk Space chapter of the 
         MS-DOS User's Guide.

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 Help -- Cannot Find File

%N cannot find the specified file. 

To continue, quit %N and make sure the file is located in the root directory of your startup disk or in the directory that contains your MS-DOS files. Then, restart %N and try carrying out your task again.

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 Help -- File Access Error

%N cannot compress the specified file because it cannot gain access to it.

To try copying and compressing the file again, choose the Retry button.

To skip this file and continue with the compression process, choose the Skip button. When %N finishes compressing your drive, the specified file will be located on the new uncompressed drive rather than on the compressed drive. To move the file to your compressed drive, run the ScanDisk program on the uncompressed drive, and then copy the file by using the MOVE or COPY commands.

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 Help -- Disk Error

%N cannot compress your drive because it has encountered a disk error.

Quit %N, and then run the ScanDisk program to fix any disk errors on this drive.

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 Help -- No Compressible Drives

%N could not find any compressible drives. 
To compress a drive:

 * The disk must be formatted.

 * The drive must contain enough free space. To find out how
   much free space is needed to compress a drive, exit
   %N and use the %S /COMPRESS X: command,
   where X is the letter of the drive you want to compress.
   (%N cannot compress 360K floppy disks.)

 * If you are trying to compress a floppy disk or other 
   removable media, the disk must be in the drive and the 
   drive door closed. 

 * The drive must not be already compressed. (%N 
   displays this error message if all your drives are already 
   compressed.)

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 Help -- Cannot Load %S.BIN

MS-DOS was unable to load %S.BIN -- the part of MS-DOS that provides access to your compressed drives.

Either or both of the %S.BIN and IO.SYS system files are invalid. Reinstall MS-DOS, and then try running %N again.

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 Help -- Quitting %N

If you quit %N Setup before it is complete, the files on your disk will be unchanged. 

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 Help -- Error
%N has encountered a fatal error during compression. 

For more information, see the %N section of the README.TXT file. This file is located in the directory that contains your MS-DOS files. A copy of the README.TXT file is also located on Setup Disk 1.

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 Help -- Error
%N has encountered an error condition. 

For more information, see the %N section of the README.TXT file. This file is located in the directory that contains your MS-DOS files. A copy of the README.TXT file is also located on Setup Disk 1.

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 Help -- Defragment Error
%N has encountered an error while defragmenting your drive. 

For more information, see the %N section of the README.TXT file. This file is located in the directory that contains your MS-DOS files. A copy of the README.TXT file is also located on Setup Disk 1.

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 Help -- Cannot Update Windows Files

The next time you run Windows, you will need to correct your Virtual Memory settings.

When %N compressed your hard drive, it found that your Windows swap file was located on that drive. To work properly, your Windows swap file must be located on an uncompressed drive. Therefore, %N moved your swap file to the specified uncompressed drive. However, %N could not modify the Windows configuration files that specify the location of your swap file.

The next time you start Windows, you will see a message about your swap file. Follow the instructions on your screen.

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 Help -- Running %N with Other Operating Systems

%N has found files from another operating system on your hard disk. Before you install %N, check to make sure the other operating system can use %N compressed drives. 

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 Help -- Running %N with Long Filenames

If %N compresses a drive that contains files with long filenames, the filenames might be damaged. 

A long filename is any filename that does not conform to the standard MS-DOS file-naming convention (8 characters for the filename, 3 characters for the filename extension). A long filename might exceed these limits, or might contain characters not supported by the standard MS-DOS file-naming convention.

%N does not support long filenames. If it encounters any long filenames while compressing a drive, %N truncates the filenames to the standard length.

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If you install %N and the other operating system cannot read %N compressed drives, then you will not be able to use the files on your compressed drives when you are running the other operating system. 

If you compress drive C and the other operating system cannot read %N compressed drives, the other operating system might not start properly.

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 Help -- Backing Up Your Files

You should back up your files before you compress them. It's always a good idea to have a recent backup of the files on your drive.

MS-DOS 6 includes two backup programs: Microsoft Backup for MS-DOS and Microsoft Backup for Windows. When you ran MS-DOS Setup, you chose which backup program(s) to install on your hard disk.

If you installed Microsoft Backup for MS-DOS, back up your files by typing MSBACKUP at the command prompt. 

If you installed Microsoft Backup for Windows, back up your files by starting Windows and then double-clicking the Backup icon in the Microsoft Tools group.

For more information about both backup programs, see the MS-DOS 6 User's Guide.

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 Help -- Caution

%N runs the ScanDisk program to check your drive for errors. This is an important step whenever you will be changing the drive dramatically (for example, when compressing or uncompressing the drive). 

Running ScanDisk ensures that %N will not attempt to use damaged areas of your drive. Because you quit ScanDisk before it finished performing a surface scan on your drive, there is no way for %N to tell which parts of your drive are reliable and which, if any, are not. 

If you are not sure whether your drive contains unreliable areas, choose No. If you choose Yes and your drive does contain errors, you could lose data if %N tries to use an unreliable area of the drive during the compression or uncompression process. 

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 Help -- Error

%N runs the ScanDisk program to check your drive for errors. Because you stopped ScanDisk before it could complete its basic tests, there is no way for %N to tell which parts of your drive are reliable and which, if any, are not. Therefore, %N cannot continue.

ScanDisk takes much longer to perform a surface scan than it does to check other areas of a drive. Although it is much safer to allow ScanDisk to check all areas of your drive, if you are in a hurry, you can compress your drive without first completing a surface scan. To bypass the surface scan, wait until ScanDisk begins the surface scan, and then choose Exit. When %N displays a Caution dialog, choose Yes. Note that if you skip the surface scan, %N might try to use an unreliable area of your drive, and you might lose data.

Note: If you are uncompressing a drive, ScanDisk checks 
      both the compressed drive and the host drive for errors. 
      If you are in a hurry, you can skip the surface scan of 
      the host drive. To do this, choose Next Drive in the 
      Surface Scan dialog. 

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 Help -- Error

%N cannot continue because ScanDisk found problems on your drive.

Before you compress or uncompress a drive, %N runs ScanDisk to make sure your drive is reliable. If ScanDisk finds physical errors or damaged data on your drive, you cannot compress or uncompress the drive because you might lose data.

To fix the problems, quit %N, and then run ScanDisk on the drive.

Caution: If ScanDisk found physical errors, your drive might be about 
         to experience a hardware failure. Back up your files immediately,
         and then have the drive checked by a qualified computer hardware