ACCESS2000 database file Password extraction (source program C++builder5) (recommended for conversion to C # version)

access|c++| Program | data | database | conversion #include <vcl.h>
#pragma hdrstop

#include "DolACCESS.h"
//---------------------------------------------------------------------------
#pragma package (smart_init)
#pragma resource "*.DFM"
Tform1 *form1;
//---------------------------------------------------------------------------
__fastcall Tform1::tform1 (tcomponent* Owner)
: Tform (Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall Tform1::speedbutton1click (tobject *sender)
{
if (Opendialog1->execute ())
edtfilename->text=opendialog1->filename;
Else
Application->messageboxa ("No valid file name is selected!") "," the Message ", IDOK);

}
//---------------------------------------------------------------------------
void __fastcall Tform1::button1click (tobject *sender)
{
int ifilehandle;
int ibyteread;
int i,j;
Char *pszbuffer;
Char code[0x27]={0x10,0xec,0xcb,0x9c,0x50,0x28,0x85,0x8a,0xc2,0x7b,
0X63,0XDF,0XE1,0X13,0X59,0XB1,0XA2,0X79,0X04,0X7C};
if (Edtfilename->text.length ()!=0)
{
Try
{
Ifilehandle=fileopen (Edtfilename->text,fmopenread);
FileSeek (ifilehandle,0x42,0);
Pszbuffer=new char[0x27];
Ibyteread=fileread (IFILEHANDLE,PSZBUFFER,0X27);
FileClose (Ifilehandle);
I=IBYTEREAD/2;
for (j=0;j<=i;j++)
{
CODE[J]=CODE[J]^PSZBUFFER[2*J];
}
delete [] pszbuffer;
edtpassword->text=code;
if (Edtpassword->text.length () ==0)
edtpassword->text= "This database is not set password!";
}
catch (const exception& e)
{
Application->messageboxa ("Read file Error!!!", "Error!", IDOK);
}
}
Else
{
Application->messageboxa ("No valid filename entered", "Note!", IDOK);
}
}