Question

How run Winzip from within VB.Net 2008?

Asked by: EYoung

I am trying to figure out how to run WinZip from within my VB.net 2008 windows application.  I am trying to zip up several files into one zip file.  I have looked all over the internet and have tried many different methods but nothing works.

I have tried:
Call Shell("c:\program files\winzip\winzip32 -min -a C:\TTA.zip Sizes.txt Items.txt")

And:
Dim cmd As String
cmd = "C:\Program Files\Winzip\winzip32.exe" & " " & "G:\Mktg\I-entrix\IXExport\ShareDB\Temp\TTA.zip" & " " & "G:\Mktg\I-Centrix\IXExport\ShareDB\Temp\*.txt"
Debug.Print(cmd)

And:
'Ceate a new process
Dim myProcess As Process = _
System.Diagnostics.Process.Start("C:\Program Files\WinZip\winzip32.exe TTA" & Str(Now.ToString("mm")) & Str(Now.ToString("dd")) & Str(Now.ToString("yy")) & " G:\Mktg\I-Centrix\IXExport\ShareDB\Temp\*.txt")
myProcess.Close()


I have also downloaded and tried wzzip (the command line addin) but I can't get it to work either.

Would appreciate some help.  Thanks

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Asked On
2009-10-06 at 16:51:49ID24790924
Tags

VB.net winzip

Topic

VB Database Programming

Participating Experts
4
Points
210
Comments
24

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Answers

 

by: EladlaPosted on 2009-10-06 at 16:53:45ID: 25511078

Can you give more details?
Do you get an error message?
What happens when you run these lines of code?

 

by: leakim971Posted on 2009-10-06 at 16:55:49ID: 25511090

Hello EYoung,

You can zip directly with the framework : http://msdn.microsoft.com/en-us/library/aa719106(VS.71).aspx#vbcompii_topic3

Regards.

 

by: EYoungPosted on 2009-10-06 at 16:57:27ID: 25511097

Well, nothing seems to happen.  Its as if the command lines are read and skipped.  I know I have rights to write to the folder.  No error messages appear.  Its as if the winzip line errors out quickly.  I don't think there are any syntax errors as I have been over these lines many times very carefully.  I think something else is going on. Thanks for your help.

 

by: EYoungPosted on 2009-10-06 at 17:01:11ID: 25511125

leakim971 - Can the zipped file be unzipped using WinZip?

 

by: emoreauPosted on 2009-10-06 at 17:03:13ID: 25511139

 

by: leakim971Posted on 2009-10-06 at 17:05:06ID: 25511161

<< Can the zipped file be unzipped using WinZip >>
Of course !

 

by: EYoungPosted on 2009-10-06 at 17:08:03ID: 25511197

emoreau,

Doesn't aspx require .Net Framework 3.5?  The computer this will be running on is Windows 2000 running .Net Framework 2.0.

 

by: EYoungPosted on 2009-10-06 at 17:10:50ID: 25511228

emoreau and leakim971,  I looked at the references you provided and that is a lot of code.  Isn't there a simple command line that will call a compression program like Winzip or WZZip?  Thanks for your help.

 

by: leakim971Posted on 2009-10-06 at 17:17:51ID: 25511272

Try this one with your method : http://stahlforce.com/dev/index.php?tool=zipunzip

Call Shell("c:\zip C:\TTA.zip Sizes.txt Items.txt")

                                              
1:

Select allOpen in new window

 

by: EYoungPosted on 2009-10-06 at 17:26:35ID: 25511303

leakim971:  I entered:  Call Shell("c:\winzip C:\Temp\TTA.zip C:\Temp\Sizes.txt C:\Temp\Items.txt") but it does not work.  It just skips by it quickly and does not create the TTA.zip file.

Maybe there is some type of error occurring with rights, location, ???

 

by: leakim971Posted on 2009-10-06 at 17:28:39ID: 25511313

Not :
Call Shell("c:\winzip C:\Temp\TTA.zip C:\Temp\Sizes.txt C:\Temp\Items.txt")

But
Call Shell("c:\zip C:\Temp\TTA.zip C:\Temp\Sizes.txt C:\Temp\Items.txt")

You have rename the zip.exe file ?

 

by: EYoungPosted on 2009-10-06 at 17:32:33ID: 25511331

leakim971 - here is the line:
Call Shell("C:\zip C:\Temp\TTA.zip C:\Temp\Sizes.txt C:\Temp\Items.txt")

No I have not renamed the zip file.  WijnZip.exe is in C:\Program Files\WinZip\

The changed line above does not work.  It just skips past it and does not execute.

 

by: emoreauPosted on 2009-10-06 at 18:39:16ID: 25511535

>>Doesn't aspx require .Net Framework 3.5?

your question was refering VB.Net 2008 so I was assuming you were using the .Net framework 3.5!

I would use http://www.icsharpcode.net/OpenSource/SharpZipLib/

 

by: EYoungPosted on 2009-10-06 at 18:55:36ID: 25511617

emoreau, yes aspx does require .Net Framework 3.5.  Before I download something I would like to know that it provide for simple execution within vb.net and only uses a few lines of code as shown above.  Does it do that and can you provide a sample?  Thanks.

 

by: EYoungPosted on 2009-10-06 at 21:03:24ID: 25512131

I can't even get a simple .bat to execute winzip.  Here is the contents of the bat file:

WINZIP32 -a c:\Zipped_Text.zip c:\Unzipped_Text.txt

When I click on this bat file nothing happens.  Any ideas?

 

by: leakim971Posted on 2009-10-06 at 21:07:58ID: 25512149

What happen directly from command line ? No problem ?

 

by: nishitcruisePosted on 2009-10-06 at 21:12:41ID: 25512162

Check the given url for command line parameters and use Sendkeys to send the command string to cmd.

http://www.memecode.com/docs/winzip.html

Hope it will work for you

 

by: nishitcruisePosted on 2009-10-06 at 21:14:36ID: 25512166

 

by: EYoungPosted on 2009-10-07 at 07:05:06ID: 25515446

leakim971:  When I execute the command from Start/Run, the command shows the Winzip dialog box prompting me to buy the product or use the evaluation product.  When I execute the same command from a .bat file, nothing appears to happen.  After I double click on the .bat file, there is a momentary delay (1-2 seconds), then nothing happens.

nishitcruise:  Not sure I understand your suggestion.  I have looked at the given url page and I think I am following the formats correctly.  Additionally, I have downloaded and tried wzzip but have not been successful.

 

by: leakim971Posted on 2009-10-07 at 07:06:36ID: 25515463

Please use this free simple tool : http://stahlforce.com/dev/index.php?tool=zipunzip
c:\zip C:\TTA.zip Sizes.txt Items.txt

Work great !

 

by: EYoungPosted on 2009-10-07 at 07:09:10ID: 25515491

Can anyone create a one line .bat file that zips two or more files into one file?  If I had a successful .bat file that worked, then I could call that from the .net program.

The contents of the .bat file would be something like this:
C:\Winzip\WINZIP32 -a c:\Zipped_Files.zip c:\Unzipped_File1.txt c:\Unzipped_File2.txt

Thanks

 

by: leakim971Posted on 2009-10-07 at 07:10:30ID: 25515503

EYoung,

I have a batch running everyday with http://stahlforce.com/dev/index.php?tool=zipunzip

Regards.

 

by: EYoungPosted on 2009-10-07 at 16:41:52ID: 25521316

Bumping points to 210 so it can be divided evenly.

 

by: EYoungPosted on 2009-10-07 at 16:47:53ID: 31638001

Thanks to each of you.  Using your suggestions and the following helped me to solve the issues.

1.  I was using an evaluation copy of WinZip that kept displaying an irritating dialog box at startup.  So I purchased the product and the box no longer shows up.

2.  I was developing the VB.net application on my development computer, but running it on the production server.  Because my development computer has different mapped drives than does the production server, there were multiple errors occurring.  Once I realized that, I now only test/run on the production server and it runs correctly.

3.  Although the production server runs Windows 2003 server with .Net Framework 2.0, my VB.net code needs .Net Framework 3.5.  So I installed 3.5 and that removed more problems.

Thanks for all the help.

20120131-EE-VQP-002

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