Zip files & unzip files - Please help - Xtreme Visual Basic Talk

11-16-2004, 12:59 AM

Newhire

Newcomer

Join Date: Oct 2004

Posts: 24

Zip files & unzip files - Please help

Hi all,

I'm developing one tool which read & modify files inside the zip file.

If you know how to do it, please tell me.

Thanks a lot for your help!

New hire

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11-16-2004, 03:22 AM

OMID SOFT

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Join Date: May 2004

Location: Richmond Hill

Posts: 538

If you have WinZip installed on the target system :

Code:

'Inputs, Example:
'source = app.path & "source.exe"
'target = app.path & "target.zip"
'zip = true (compress)
'zip = false(uncompress)

Code:

Function winZipit(ByVal source As String, ByVal target As String, ByVal zip As Boolean)
    zipIT = App.Path & "winzip32 -a"
    unzipIT = App.Path & "winzip32 -e "
    If zip = True Then
        Shell (zipIT & target & source)
    Else: Shell (unzipIT & target & source)
    End If
End Function

Note :
winzip doesn't recognize spaces

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11-16-2004, 04:19 AM

Flyguy

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Compression Index on vbAccelerator

11-16-2004, 05:10 AM

Hugh Lerwill Hugh Lerwill is offline

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Join Date: Oct 2004

Posts: 292

Quote:

Originally Posted by Newhire

Hi all,

I'm developing one tool which read & modify files inside the zip file.

If you know how to do it, please tell me.

Thanks a lot for your help!

New hire

As pointed out by FlyGuy the free InfoZip utilities will do what you need.
You can use the utilities in 2 ways;

1. Use the InfoZip dlls or
2. Shell out to the InfoZip Zip.exe and UnZip.exe in a similar manner to that described by OMID SOFT for WinZip.

I personally distribute Zip.exe and Unzip.exe with my apps and use the second method. I could not get the dll approach to work reliably, or more precisely I could get it to work but it seemed over reliant on the versions of the .dlls used.

regards

11-17-2004, 09:20 PM

Newhire

Newcomer

Join Date: Oct 2004

Posts: 24

Zip!

All pros,

Thanks a lot for your support. I've already done it by using Winzip 9.0 Command line support like Omid Soft.

But I think it'll be better when I use dll included my code like Fly Guy advise.

Thanks again all pros. I love this forum so much!!!

New hire.

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02-12-2005, 01:36 AM

eyes

Regular

Join Date: Feb 2005

Posts: 52

hi

I can't get the info zip dll to work. i followed the instructions and placed the dll in the system32 folder. can help? the error msg is "object variable or with block variable not set"

Otherwise, when can i download the unzip.exe? want to try the shell out method too

thanks