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    Hi,

    I have a question regarding the file compression in the Windows operating system. I can see two check boxes. one is "File is ready for archiving" and another is "Compress files to save disk space". I cannot find any more information regarding these two options. my questions are

    1. does windows provide any compression by default?

    2,. if so, instead of using winzip or other compression software, can i go with this compression?

    3. how much efficient this compression will be?

    i really don't know whether this is the right forum to post this question. please advise me the correct forum name if i am wrong.

     

    thanks a lot.

     

    regards

    Wednesday, August 2, 2006 1:14 PM

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    Hi,

     

    Please refer this URL:

     

    http://support.microsoft.com/default.aspx?scid=kb;en-us;307987

     

    It may give you some ideas.

    Monday, August 28, 2006 11:21 AM
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    Microsoft Windows 2000 later versions does provide and recognizes the archived files.
    Infact if you have installed NTFS file system you will get this feature.
    here are straight forward answers to your questions.........

    Ans 1:-  Yes Windows Provides Compression but you need to install Windows on an NTFS file system.

    Ans 2:- No, the Problem is the installing NTFS file system makes your system a bit slow. Actually it is meant for PC's on a large or even a Medium sized computer networks. if you are using a standlone system it would be better to use winzip or any other archiving software.

    Ans 3:- Depends on the kind of Data.
    Wednesday, February 7, 2007 6:52 PM
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    Mitesh's post was good. But the NTFS compression and winzip/winrar compression are totally different. NTFS compression takes advantages of the NTFS file system properties whereas winzip compression uses algorithms ro compress the data. Like if you apply NTFS compression to a 100KB file, you will see that the file's size is 100KB but it is occupying, suppose, 80KB disk space. whereas winzip will encrypt the file to a file of 80KB which will also hold a disk space of more than or equal to 80KB. Due to this NTFS compression does not slow the access, but zip compression does(you need to decrypt the file before accessing).

    As far as I have seen for video files and executables, where zip can't achieve anything, NTFS compression gives good performance. but zip gives better performance in text files because of optimized algorithms.
    Wednesday, March 14, 2007 1:35 PM

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    Hi,

     

    Please refer this URL:

     

    http://support.microsoft.com/default.aspx?scid=kb;en-us;307987

     

    It may give you some ideas.

    Monday, August 28, 2006 11:21 AM
  • Question
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    Microsoft Windows 2000 later versions does provide and recognizes the archived files.
    Infact if you have installed NTFS file system you will get this feature.
    here are straight forward answers to your questions.........

    Ans 1:-  Yes Windows Provides Compression but you need to install Windows on an NTFS file system.

    Ans 2:- No, the Problem is the installing NTFS file system makes your system a bit slow. Actually it is meant for PC's on a large or even a Medium sized computer networks. if you are using a standlone system it would be better to use winzip or any other archiving software.

    Ans 3:- Depends on the kind of Data.
    Wednesday, February 7, 2007 6:52 PM
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    the compression ratios provided by native windows support are neither customizable nor have any strong compression technique. so i`d rather reccomend you to use other propietory compression utilities like rars winzip etc. i had also come across a utility named Kgb file archiver. this open source utility although very heavy on hardware requirements has a very very good compression algo and can compress even about 400 megs of bytes to upto 5 -6 mB....
    Saturday, February 10, 2007 8:05 PM
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    What's the correct answer out of these three options.
    Friday, March 9, 2007 10:06 AM
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    Mitesh's post was good. But the NTFS compression and winzip/winrar compression are totally different. NTFS compression takes advantages of the NTFS file system properties whereas winzip compression uses algorithms ro compress the data. Like if you apply NTFS compression to a 100KB file, you will see that the file's size is 100KB but it is occupying, suppose, 80KB disk space. whereas winzip will encrypt the file to a file of 80KB which will also hold a disk space of more than or equal to 80KB. Due to this NTFS compression does not slow the access, but zip compression does(you need to decrypt the file before accessing).

    As far as I have seen for video files and executables, where zip can't achieve anything, NTFS compression gives good performance. but zip gives better performance in text files because of optimized algorithms.
    Wednesday, March 14, 2007 1:35 PM
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    NTFS file system provides default compression.when compressed these files appear blue.and this is done in two ways one is via wipzip ,like variant of the LZ77 algorithmand also aloows transperant access to data.second one is via sparse files.i.e files that contains most of data as zeros.so it elemenates need for using storing large no of zeros data. also appilacations which read will read trasperantly.
    one problem with data compression is it is processor intensive although it is transperant for applications but it uses processing power while u use file.i.e encryption andd decryption is always done.another improvement is done on the storage of data.so wastage due to large block size is reduced.
    winzip and others are slower in access than ntfs compression but better compression ratio can be achived because of progressive archiving NTFS data access is faster
        but windows xp provides built in support for zip files.main advantage is sngle file with zip and acess from any app in NTFS compression
    Monday, April 23, 2007 4:31 PM