File compressing

[jtsdadinaz]

What program or DLL is used to compress files in XP? I know compact is for
the file system, but what is used when you want to make a zip and do not have
a 3rd part add-on such as winzip. I have been searching, but have not found
an answer.

 

[Gary S. Terhune]

Click Start=>Help and Support" In the Search bar, type "Compressed Folders".
In "Pick a Task" section, look for "Create a zipped compressed folder".

 

[jtsdadinaz]

That is all well and good, I know how, I want to know what does it? Program
or DLL?

 

[PA Bear [MS MVP]]

WinXP does it.

That is all well and good, I know how, I want to know what does it?
Program
or DLL?

 

[Gary S. Terhune]

www.sysinternals.com will redirect you to their new home, Microsoft.com. You
can get Process Explorer, do some testing and figure it out. Or even just
open Task Manager to the Processes tab and then watch it while you create a
"compressed folder". Sort on CPU to see which one(s) are doing the most when
the actual compression occurs.

 

[Plato]

What program or DLL is used to compress files in XP? I know compact is for

Whatever it is, disable any file compression.

 

[Alec S.]

What program or DLL is used to compress files in XP? I know compact is for
the file system, but what is used when you want to make a zip and do not have
a 3rd part add-on such as winzip. I have been searching, but have not found
an answer.

Try 7-Zip. It’s powerful and free: http://www.7-zip.org/

 

[Gary S. Terhune]

Why?

 

[Gary S. Terhune]

Most of the work is done by Explorer.exe. However there is a file called
zipfldr.dll involved.

 

[Plato]

Why?

To make backups/restore more reliable. To save files in the most
pristine state.

 

[Gary S. Terhune]

What does file compression have to do with any of that? Any time a Windows
"compressed" file is read, it is decompressed. The compressed version is not
what goes into the backup set. So, yeah, it might make a backup session
slower, especially if it's an old machine, but I've yet to hear of problems
caused by Windows compression.

Do you have any documentation of file compression causing problems with any
backup programs?

Come on, Plato. You'll have to do better than a couple of vague statements,
neither of which make any sense to me. Is this just your opinion, the
opinion of others who have nothing better to do than spread opinions based
upon nothing more than illogical blather, or do you have documentation of
the issue from reliable sources?

That said, there are lots of places you do NOT want to use Windows
Compression, and, except in certain special circumstances, I wouldn't change
the Windows default settings (which mostly compress old, seldom used system
files.)
http://support.microsoft.com/kb/251186
http://support.microsoft.com/kb/307987