Удаление скрытых файлов

#include <System.IOUtils.hpp>
if(TDirectory::Exists("%ProgramData%\\MP")) TDirectory::Delete("%ProgramData%\\MP", true);//Папка удаляться даже если в ней есть файлы!
DeleteFile ("%ProgramData%\\*.*");

    const int BUFFER_SIZE = 4096;
 
    TCHAR buffer[BUFFER_SIZE] = {0};
    ::ExpandEnvironmentStrings(_T("%PROGRAMDATA%"), buffer, BUFFER_SIZE);
 
    String path = String(buffer) + _T("\\MP");
    if (TDirectory::Exists(path))
        TDirectory::Delete(path, true);

#include <tchar.h>

//---------------------------------------------------------------------------
 
#include <vcl.h>
#pragma hdrstop
 
#include "Unit1.h"
#include <System.IOUtils.hpp>
#include <tchar.h>
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
const int BUFFER_SIZE = 4096;
 
    TCHAR buffer[BUFFER_SIZE] = {0};
    ::ExpandEnvironmentStrings(_T("%PROGRAMDATA%"), buffer, BUFFER_SIZE);
 
    String path = String(buffer) + _T("\\Имя нужной папки");
    if (TDirectory::Exists(path))
        TDirectory::Delete(path, true);
}
//---------------------------------------------------------------------------

//---------------------------------------------------------------------------
 
#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:    // IDE-managed Components
    TButton *Button1;
    void __fastcall Button1Click(TObject *Sender);
private:    // User declarations
public:     // User declarations
    __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif