Zip One File

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)

Zip a single file.

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

...

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

begin
zip := TChilkatZip2.Create(Self);

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

  end;

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

  end;

//  In this example, the file we wish to zip is c:/temp/abc123/HelloWorld123.txt

//  Add a reference to a single file by calling AppendOneFileOrDir
//  Note: You may use either forward or backward slashes.
saveExtraPath := 0;
success := zip.AppendOneFileOrDir('c:/temp/abc123/HelloWorld123.txt',saveExtraPath);
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);

  end;

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

  end;

//  A .zip containing "HelloWorld123.txt" with no path information has been created.
ShowMessage('Zip Created!');

//  Perhaps you want to include a path in the .zip such that when unzipping, a sub-directory
//  is automatically created and the file unzipped into it.  Use PathPrefix:

//  (We'll skip checking the success/failure return value.)

//  Set a PathPrefix to get the relative path you want:
//  The .zip will contain this entry: "myApp/HelloWorld123.txt"
success := zip.NewZip('test2.zip');
zip.PathPrefix := 'myApp/';
success := zip.AppendOneFileOrDir('c:/temp/abc123/HelloWorld123.txt',saveExtraPath);
success := zip.WriteZipAndClose();
end;