System Restore Point erstellen, code geht nicht unter Win10

[Shark99]

Dieser Code funktioniert unter Windows 2000 bis Windows 7 um einen System Restore Wiederherstellungspunkt zu erzeugen. Dazu braucht man natürlich Admin-Rechte. Unter Windows 10 funktioniert der Code leider nicht. Es wird zwar success gemeldet, aber kein Wiederherstellungspunkt wird erstellt. Ich hoffe jemand weiß woran es liegt. Ich habe ein Beispielprojekt angehängt.

Delphi-Quellcode:

unit Unit1;

interface

uses
  Windows,
  Forms,
  Classes,
  SysUtils,
  Controls,
  StdCtrls;

const
 // Type of Event
 BEGIN_SYSTEM_CHANGE = 100;
 END_SYSTEM_CHANGE = 101;
 // Type of Restore Points
 APPLICATION_INSTALL = 0;
 CANCELLED_OPERATION = 13;
 MAX_DESC = 64;
 MIN_EVENT = 100;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

// Restore point information
PRESTOREPTINFOA = ^_RESTOREPTINFOA;
_RESTOREPTINFOA = packed record
    dwEventType: DWORD; // Type of Event - Begin or End
    dwRestorePtType: DWORD; // Type of Restore Point - App install/uninstall
    llSequenceNumber: INT64; // Sequence Number - 0 for begin
    szDescription: array [0..MAX_DESC] of CHAR; // Description - Name of Application / Operation
end;
RESTOREPOINTINFO = _RESTOREPTINFOA;
PRESTOREPOINTINFOA = ^_RESTOREPTINFOA;

// Status returned by System Restore

PSMGRSTATUS = ^_SMGRSTATUS;
_SMGRSTATUS = packed record
    nStatus: DWORD; // Status returned by State Manager Process
    llSequenceNumber: INT64; // Sequence Number for the restore point
end;
STATEMGRSTATUS = _SMGRSTATUS;
PSTATEMGRSTATUS = ^_SMGRSTATUS;

TSetRestorePoint = Function(pRestorePtSpec: PRESTOREPOINTINFOA; pSMgrStatus: PSTATEMGRSTATUS): Bool; stdcall;

function CreateRestorePoint(s: string): boolean;

var
  hSrClientDLL : THandle;
  FSetRestorePoint   : TSetRestorePoint;
  Form1: TForm1;

implementation

{$R *.dfm}

function CreateRestorePoint(s: string): boolean;
var
  RestorePtSpec: RESTOREPOINTINFO;
  SMgrStatus: STATEMGRSTATUS;
begin
  Result := False;
                                 23.06.2016
  if not assigned(FSetRestorePoint) then
  begin
     hSrClientDLL := LoadLibrary('SrClient.dll');
     if hSrClientDLL = 0 then
          Exit;
    @FSetRestorePoint := GetProcAddress(hSrClientDLL, 'SRSetRestorePointA');
    if not assigned(FSetRestorePoint) then
     Exit;
  end;

  RestorePtSpec.dwEventType := BEGIN_SYSTEM_CHANGE;
  RestorePtSpec.dwRestorePtType := APPLICATION_INSTALL;
  RestorePtSpec.llSequenceNumber := 0;

  copymemory(@RestorePtSpec.szDescription[low(RestorePtSpec.szDescription)],@s[1],sizeof(RestorePtSpec.szDescription));

  if FSetRestorePoint(@RestorePtSpec, @SMgrStatus) then
  begin
     Result := True;
  end;
end;


procedure TForm1.Button1Click(Sender: TObject);
begin
  if CreateRestorePoint('Test Restore Point') then Caption := 'success' else Caption := 'Error';
end;

end.