Q96849  

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  Microsoft® Product Support Services Application Note (Text File)
               PD0745: DOUBLESPACE QUESTIONS AND ANSWERS
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                                                   Revision Date: 4/94
                                                      No Disk Included
 
The following information applies to Microsoft MS-DOS®, version 6.0
Upgrade.
 
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1.  Q. Why does DoubleSpace create a drive identified by the letter H
       when I have drives A, B, and C only?
 
    A. To avoid conflicts with existing drives, DoubleSpace examines
       the existing drive assignments during installation to find the
       highest drive letter currently in use. It then skips the next
       four letters and assigns the fifth letter to the new
       DoubleSpace drive.
 
       For example, if your computer has two floppy disk drives (A and
       B) and a hard disk drive (C), DoubleSpace locates the highest
       letter (C); skips drive letters D, E, F, and G; and then
       assigns drive letter H for its own use.
 
       For more information, refer to the "Freeing Disk Space" chapter
       in the "Microsoft MS-DOS 6 User's Guide."
 
2.  Q. I am currently using a third-party disk-compression software
       package and now want to convert to DoubleSpace. How can I do
       this?
 
    A. If you are using a third-party disk-compression software
       package, you need to back up your program and data files,
       install MS-DOS 6.0, remove your third-party disk-compression
       software, compress your drives with DoubleSpace, and then
       restore your program and data files.
 
       For more detailed information, order FastTips Technical Library
       item Q103949, titled "Converting to DoubleSpace from Third-
       Party Disk Compression."
 
3.  Q. I installed DoubleSpace and now each time I enter Microsoft
       Windows™ I receive the error "Corrupt Swapfile Warning."
       I have set up my permanent swap file many times, but I continue
       to receive this error. How can I correct this problem?
 
    A. In this case, the error "Corrupt Swapfile Warning" probably
       means your permanent swap file is being created on a
       DoubleSpace-compressed volume. Windows cannot create a
       permanent swap file on a compressed volume. To correct this
       problem, set the permanent swap file to a noncompressed drive.
 
       Windows cannot detect DoubleSpace-compressed drives because
       Windows' release predates the release of DoubleSpace.
 
       For more information, refer to the "Freeing Disk Space" chapter
       in the" Microsoft MS-DOS 6 User's Guide," or type "HELP
       DBLSPACE" (without the quotation marks) at the MS-DOS command
       prompt and press ENTER.
 
4.  Q. I am running the Defragmenter (DEFRAG) to reorganize the
       files on my disk drive, but it appears that the program has
       stopped. How should I proceed?
 
    A. If you are running the Defragmenter on a DoubleSpace-compressed
       drive, the system may appear to stop when the Defragmenter
       calls DoubleSpace to defragment the compressed volume file
       (CVF). If this occurs, do not turn off your computer or press
       the reset button. If you want to quit DEFRAG or DBLSPACE
       /DEFRAG, press the ESC key to interrupt the program.
 
       If you think DEFRAG or DBLSPACE /DEFRAG has stopped responding,
       press the ESC key. If this does not work, you must restart your
       computer. To do so, it is preferable to press the CTRL+ALT+DEL
       key combination; however, if that does not work, press the
       reset button or turn off your computer.
 
5.  Q. Because DoubleSpace has assigned drive F for its own use,
       my Novell® NetWare® logon scripts no longer work. How can I
       correct this problem?
 
    A. The drive letter F (normally used by Novell NetWare) may be
       used by DoubleSpace. To work around this situation, you can
       either use a different drive letter for your login drive, or
       you can adjust DoubleSpace so that it uses a different drive
       letter for its host drive.
 
       If your usual NetWare drive letter is unavailable, use one of
       the following methods to change the DoubleSpace host drive
       letter:
 
        - Ensure any C:\DOS\DBLSPACE.SYS commands are placed before
          any RAMDRIVE.SYS statements in your CONFIG.SYS file.
 
          -or-
 
        - Edit the DBLSPACE.INI file and change the host drive letter.
          For specific instructions, order FastTips Technical Library
          item Q97565, titled "Novell Login Drive Not Available After
          Installing DoubleSpace."
 
       NOTE: You can usually avoid this problem by making sure your
       NetWare software is loaded before you run DoubleSpace to
       compress your drives.
 
TO OBTAIN THIS APPLICATION NOTE
===============================
 
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 - If you are unable to access the source(s) listed above, you can
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   Microsoft Product Support Services Monday through Friday, 6:00 A.M.
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KBCategory: kbtool kbfile kbappnote
KBSubcategory: msdos
Additional reference words: appnote 6.00 ivrfax fast tips APD60 msbackup
mwbackup dblspace double space
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Copyright Microsoft Corporation 1995.


 
