如何使用重新启动管理器在Inno Setup uninstall中关闭并重新启动explorer.exe？

[Code]
const
  RmShutdownReasonFlagRestart = $100;

function RmShutdownReason(dwReason: DWORD): DWORD;
external 'RmShutdownReason@kernel32.dll stdcall';

procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
var
  Reason: DWORD;
begin
  if CurUninstallStep = usUninstall then
  begin
    // 获取重新启动管理器的关闭原因
    Reason := RmShutdownReason(RmShutdownReasonFlagRestart);

    // 关闭并重新启动explorer.exe
    if Reason <> 0 then
      ShellExec('', 'taskkill.exe', '/f /im explorer.exe', '', SW_HIDE, ewWaitUntilTerminated, ErrorCode);
    ShellExec('', 'explorer.exe', '', '', SW_SHOW, ewNoWait, ErrorCode);
  end;
end;

[Setup]
AppName=MyApp
AppVersion=1.0
DefaultDirName={pf}\MyApp
RestartApplications=yes

[Code]
const
  RmShutdownReasonFlagRestart = $100;

function RmShutdownReason(dwReason: DWORD): DWORD;
external 'RmShutdownReason@kernel32.dll stdcall';

procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
var
  Reason: DWORD;
begin
  if CurUninstallStep = usUninstall then
  begin
    // 获取重新启动管理器的关闭原因
    Reason := RmShutdownReason(RmShutdownReasonFlagRestart);

    // 关闭并重新启动explorer.exe
    if Reason <> 0 then
      ShellExec('', 'taskkill.exe', '/f /im explorer.exe', '', SW_HIDE, ewWaitUntilTerminated, ErrorCode);
    ShellExec('', 'explorer.exe', '', '', SW_SHOW, ewNoWait, ErrorCode);
  end;
end;