Classic ASP

Extract ZIP Files Without Preserving Directory Paths Using DiscardPaths

This example demonstrates how to use the DiscardPaths property to extract files from a ZIP archive without recreating the stored directory structure.

When DiscardPaths is set to _TRUE_, all extracted files are written directly into the target extraction directory, and any stored ZIP path information is ignored.

This is useful when:

Flattening ZIP contents into a single directory
Ignoring stored subdirectory structures during extraction
Extracting only the files themselves without recreating folders

Suppose the ZIP archive contains:

docs/readme.txt docs/manual.pdf images/logo.png

Normally, extracting the ZIP would create:

output/docs/readme.txt output/docs/manual.pdf output/images/logo.png

But when DiscardPaths is set to _TRUE_, the extracted files become:

output/readme.txt output/manual.pdf output/logo.png

The stored ZIP directory paths are discarded during extraction.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

success = 0

set zip = Server.CreateObject("Chilkat.Zip")

' Open an existing ZIP archive.
success = zip.OpenZip("example.zip")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( zip.LastErrorText) & "</pre>"
    Response.End
End If

' Discard stored ZIP paths during extraction.
' 
' When DiscardPaths = 1, all files are extracted
' directly into the target directory without recreating
' the ZIP directory structure.
zip.DiscardPaths = 1

' Extract all files to the output directory.
' 
' Even if the ZIP contains:
' 
'     docs/readme.txt
'     docs/manual.pdf
'     images/logo.png
' 
' The extracted files become:
' 
'     c:/output/readme.txt
'     c:/output/manual.pdf
'     c:/output/logo.png
' 
numFilesUnzipped = zip.Unzip("c:/output")

If (numFilesUnzipped < 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( zip.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Number of files extracted = " & numFilesUnzipped) & "</pre>"

zip.CloseZip 

Response.Write "<pre>" & Server.HTMLEncode( "Files extracted successfully.") & "</pre>"

%>
</body>
</html>