Self-Extract EXE to Temp and Auto-Run Setup Program

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How to create a self-extracting EXE that extracts to a temp directory and auto-runs a setup program after extracting.

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('Anything for 30-day trial');
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);

  end;

//  Initialize the zip object.  Because we're creating
//  a self-extracting EXE in this example, the filename
//  passed to NewZip will never actually be created.
success := zip.NewZip('notUsed.zip');
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);

  end;

//  Append a directory tree.  The AppendFiles does
//  not read the file contents or append them to the zip
//  object in memory.  It simply appends references
//  to the files so that when WriteExe (or WriteZipAndClose,
//  or WriteZip, etc.) is called, the files are compressed
//  and added to the archive.
recurse := 1;
zip.AppendFiles('c:/temp/a/*',recurse);

//  Indicate that when the EXE is run, it should automatically
//  extract to a temp directory.
zip.AutoTemp := 1;

//  If you want the EXE to self-extract with no user-interface,
//  add this:
zip.ExeNoInterface := 1;
zip.ExeSilentProgress := 1;
zip.ExeWaitForSetup := 0;

//  Indicate that after extracting, a setup program should be run:
zip.AutoRun := 'setup.exe';

//  Pass these command line params to the AutoRun program:
zip.AutoRunParams := '-a -b -c';

//  Write "mySfx.exe"
success := zip.WriteExe('mySfx.exe');
if (success <> 1) then
  begin
    ShowMessage(zip.LastErrorText);

  end;

ShowMessage('EXE Created!');
end;