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我需要从高完整性(管理员)进程调用 IE8 IEGetProtectedModeCookie API 。每当我从 Azure webapp 调用此 API 时,我都会收到ERROR_INVALID_ACCESS。我在许多地方读到高完整性进程无法调用此 API,但在我的情况下,我需要以提升的权限运行 Azure 沙箱。

有什么方法可以从较低级别的完整性过程中调用此 API?对于 Azure 沙盒,我不得不以提升的权限运行我的 webapp。

  [DllImport("ieframe.dll", CharSet = CharSet.Unicode, EntryPoint = "IEGetProtectedModeCookie", SetLastError = true)]
  public static extern int IEGetProtectedModeCookie(String url, String cookieName, StringBuilder cookieData, ref int size, int flag);

  private static string GetProtectedModeIECookieValue(string cookieName)
  {
     String r = String.Empty;

     int iSize = 4096;
     StringBuilder sbValue = new StringBuilder(iSize);

     Uri reqUri = HttpContext.Current.Request.Url;
     string baseUrl = String.Format(@"{0}://{1}", reqUri.Scheme, reqUri.Authority);

     int hResult = IEGetProtectedModeCookie(baseUrl, cookieName, sbValue, ref iSize, 0);

     if (hResult == 0)
     {
        string[] parts = sbValue.ToString().Split('=');
        r = parts[1];
        HttpContext.Current.Response.Write(r);
     }
     else
     {
        //HttpContext.Current.Response.Write("Failed to get cookie. HRESULT=0x" + hResult.ToString("x") + "\nLast Win32Error=" + Marshal.GetLastWin32Error().ToString());
     }

     return r;
  }
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