Select a filename in win explorer;
right click it and choose Properties.
Click Advanced in the File Attributes area.
Notice you can set archive bit, compress the file, or encrypt the file
from there.
Click to Compress the file and OK/close your way out.
You might have to close/open explorer once in order to update so you can
see the change, but the filename will have turned to blue text as long as
you haven't turned off the colored display in Options. If instead you
encrypted a file, the filename would have turned green.
Caveat: You can't encrypt a file that has been compressed. I don't know
why but that's the rule.
Also, XP-compressed files are only compressed while on the disk; they are
uncompressed as they are read from the drive, before they get to memory.
With encryption, the only account that can view the files there of course
are the account that created the encryption.
HTH,
Twayne
In news:ukrYJWetKHA.3904@TK2MSFTNGP02.phx.gbl,
joe <joe@ebox.com> typed:
> Does the OS do this automatically and if so under what circumstances ?
>
> "Tim Slattery" <Slattery_T@bls.gov> wrote in message
> news:6eoao5h110aceg6vu58t7iv4uioro6m9m4@4ax.com...
>> "Twayne" <nobody@spamcop.net> wrote:
>>
>>> IN XP's case, zip = compressed = zipped ... .
>>>
>>> A zipped file is compressed, but a compressed file is not
>>> necessarily zipped
>>> as there are other methods for compressing file sizes. In the case
>>> of XP, with it compresses, it creates a zipped file.
>>
>> I don't think so. A file whose name is shown in blue has been
>> compressed by the OS. This is *not* zip compression, it's something
>> that the Windows OS does. It's not as drastic as zip, therefore
>> doesn't take as long to do or to undo.
>>
>> WinXP also has built-in support for zipping and unzipping files but
>> it's a totally different thing.
>>
>> --
>> Tim Slattery
>> Slattery_T@bls.gov
>> http://members.cox.net/slatteryt