Uncompress .Z file

[howmean]

Hi,

Just like to know if anyone has ever tried using "Unzip.vi" to uncompress a ".Z" file.

I tried but Error code 42 is returned.

"NI_Unzip.lvlib:Open unZip File.vi<ERR>
Error opening the zip file.


<b>Complete call chain:</b>
     NI_Unzip.lvlib:Open unZip File.vi
     NI_Unzip.lvlib:Unzip.vi
     Untitled 2"

Wonder if "Unzip.vi" only recognises .zip format?

When I tried to unzip the ".Z" file manually using WinZip, there is no problem.

Thanks,

Mean 

[altenbach]

*.Z is not a zip format but comes from the old unix compress utility.. Many unzip programs support other compression formats and that's why winzip succeeds.

personally, I prefer 7zip, which is open source and completely free and avoids the registration nags of winzip. 😉

[howmean]

Downloaded 7zip and used it. Really handy to use and I really prefer it than WinZip.

But that still does not solve my problem here. 

What I am trying to do in my application is:

1. Download a file from a webpage. (It is a .Z compressed file) 

2. Use "Unzip.vi" function in "FileIO >> Zip >>" palette in LabView 8.5

The downloading part was done by using a Datasocket function and it works. 

The "uncompress .Z file" part is not successful. 

I've attached the .Z file in the previous post.

Wonder if it is a restriction of "Unzip.vi"?

Thanks.

Mean

Message Edited by howmean on 05-19-2009 08:50 PM

[Dennis_Knutson · Accepted solution]

As already mentioned, a .z file is not at all the same thing as a .zip file. The unzip function is for zip files, not .z, .tar, or any other compressed format.

[howmean]

noted.  Thanks.