Please fix corrupted demo-VI at NI ftp server - so I can carry on programming

[AIAAC]

Dear Sir or Madam,

your ftp servers holds a corrupted zip file containing two actually zero (!) bytes long LabVIEW demo VIs which obviously can't be used - due to exactly zero content.

The ftp-link to the corrupted file is given below in this message [2].

Please fix this problem.

Background: Currently I am writing a LabVIEW program in which I need to frequently replace elements of a very large array. Due to the very slow performance of the standard LabVIEW library VIs I looked and found a solution for this problem on a page of your LabVIEW web support area [1].

As the problem solution described there on the web page seems to be the one and only suitable solution for my program
ming problem, I really need to have the corresponding demo-VI, because it contains a nowhere else to find new VI which does exactly what I want my program to do.

But: The nominal "18040 bytes" comprising zip file extracts its two internal VI files to two VIs of only and exactly zero bytes. This means that that the zip file has to be corrupted.

So I ask you to put a working zip file onto your ftp server.

And would you also be so kind and email the working zip file (or the two VIs, respectively) to me?

I really need them to be able to carry on with the LabVIEW programming.

Thank you very much in advance for your help!
(LabVIEW really is a great software!)

Martin Sindermann
Software development engineer
Aachen Institute of Technology
Martin.Sindermann@post.rwth-aachen.de

Address of the NI web page describing the (bad) file and linking to it [1], and link to the corrupted file itself [2]:

[1] http://sine.ni.com/apps/we/niepd_web_display.DISPLAY_EPD4?p_guid=B45EA
CE3ECB156A4E034080020E74861&p_node=DZ52026&p_submitted=N&p_rank=&p_answer=&p_source=External

[2] ftp://ftp.ni.com/contrib/epd/B45EACE3ECB256A4E034080020E74861/Replacing%20Elements%20In%20Circular%20Arrays%20for%20Software%20Buffering.zip

[Dennis_Knutson]

I was able to download and unzip with no problems. You should try again.

p.s. This discussion forum is mainly LabVIEW users like yourself so when you say something like "your ftp servers", that's incorrect. To contact National Instruments, you need to go to http://www.ni.com/support/.

[AIAAC]

Hi Dennis,

Thank you very much for your help in (successfully) trying to download and extract the zip file, and for your fast answer!

Yes, you are right two times:

First: The zip file is OK.

The fault has to be an incompability of the zip file format used by NI with my 6.2 version of Winzip. My Winzip program still pretends that the zip file contains two files of the lenght zero whereas another (newer) unpacking program (Ontrack PowerDesk) was able to extract the two files correctly.

After over 10 years of using zip files this is my very first experience of an incompability of zip files with a pkunzip/extraction program. If I had known before that these problems exists - without any notification or hint from the unpacking program that there is a
file problem or a file format incompability - I would have tried another unpacking program initially.

And, yes, you are right a second time:

My message has obviously - and by mistake - been posted to the LabVIEW users discussion forum.

I wanted to send it to a NI employee, but somehow the NI web form has led me to the LabVIEW users discussion forum, despite the fact that I have chosen the radiobutton "to a NI engineer".

However, you solved the problem. Thanks again for that!

Au revoir,
Martin

[Kamran S.]

I've noticed one thing with winzip. If I click on the download link and select "Open" for some reason WinZip will show an empty zip file. If I "Save" the same file to your harddrive and open it it'll be just fine.

You may want to try using "Save" instead of "Open" to see if that changes the behavior for you.
Regards,
Kamran