Create Zip with utf-8 Filenames (Unicode filenames)

Demonstrates how to create a .zip archive that stores the filenames using the utf-8 character encoding. This allows for filenames of any language to be within a single Zip.

Note: utf-8 is the multibyte encoding for Unicode. When a Zip compression product declares that it supports Unicode filenames, what it really means is that it is capable of reading/writing utf-8. WinZip added support for Unicode (utf-8) filenames starting with version 11.2.

Download Chilkat 32-bit Zip ActiveX (.msi) (includes objects for .zip, .gz, .bz2, and .Z)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    ChilkatZip2Lib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
zip: TChilkatZip2;
success: Integer;
recurse: Integer;

begin
zip := TChilkatZip2.Create(Self);

//  Any string unlocks the component for the 1st 30-days.
success := zip.UnlockComponent('30-day trial.');
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);
    Exit;
  end;

success := zip.NewZip('test.zip');
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);
    Exit;
  end;

//  To zip using utf-8 filenames, set the OemCodePage = 65001
zip.OemCodePage := 65001;

recurse := 1;
zip.AppendFiles('c:/temp/NonEnglishFilenames/*',recurse);

success := zip.WriteZipAndClose();
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);
    Exit;
  end;

ShowMessage('Zip Created!');
end;