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查询WMI类Win32_QuickFixEngineering返回许多古怪的时间戳(C)

  •  2
  • JCCyC  · 技术社区  · 16 年前

    类文档 here . InstalledOn属性应该在安装修复程序时具有时间戳(嗯,duh)。但是医生没有说格式是什么。我得到了一些无法理解的东西,但它显然意味着一些东西。”01ca56402c180b70“是一个非常明显的十六进制数,但是是什么?

    ManagementScope scope;
    ConnectionOptions options = new ConnectionOptions();
    options.Username = tbUsername.Text;
    options.Password = tbPassword.Password;
    options.Authority = String.Format("ntlmdomain:{0}", tbDomain.Text);
    scope = new ManagementScope(String.Format("\\\\{0}\\root\\cimv2", tbHost.Text), options);
    scope.Connect();
    ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, new ObjectQuery("SELECT * FROM Win32_QuickFixEngineering"));
    foreach (ManagementObject queryObj in searcher.Get())
    {
        wmiResults.Text += String.Format("{0} <{1}>: {2} (Installed {3} by '{4}')",
                                         queryObj["HotFixID"],
                                         queryObj["Caption"],
                                         queryObj["Description"],
                                         queryObj["InstalledOn"],
                                         queryObj["InstalledBy"]
                                         );
    }
    

    Da输出:

    {87796B93-94D0-A0C7-EFC4-FF34426626BC} <>:  (Installed 20090513 by '')
    {D93F9C7C-AB57-44C8-BAD6-1494674BCAF7} <>:  (Installed 20090928 by '')
    {9AD2FB23-AC50-435C-8ABC-8119D29CF0C1} <>:  (Installed 20090929 by '')
    {62D3B51B-F56D-40F0-8C32-EAB204ADF752} <>:  (Installed 20090513 by '')
    {EC038F86-AC1E-4C30-AEFB-B6B8A3922DCD} <>:  (Installed 20091116 by '')
    {D1219E04-62FF-49D0-804C-A27F968E50A5} <>:  (Installed 20091116 by '')
    {1DE62EBA-6684-2483-3409-CEBADBF8A31E} <>:  (Installed 20090513 by '')
    {8CA89076-2A6D-42C3-AA24-F203C9E5DBF3} <>:  (Installed 20090513 by '')
    {F5E29D9D-519A-36C7-87E3-9A22A8180B1B} <>:  (Installed 20091016 by '')
    KB948609 <http://support.microsoft.com/?kbid=948609>: Update (Installed 01c9d3cb9b46a87c by 'S-1-5-21-2756995651-916083937-3196967445-500')
    KB948610 <http://support.microsoft.com/?kbid=948610>: Update (Installed 01c9d3cb9b4909dd by 'S-1-5-21-2756995651-916083937-3196967445-500')
    KB951978 <http://support.microsoft.com/?kbid=951978>: Update (Installed 01ca408d02d6cdbe by 'S-1-5-18')
    KB952287 <http://support.microsoft.com/?kbid=952287>: Hotfix (Installed 01ca408d02d925c8 by 'S-1-5-18')
    KB954155 <http://support.microsoft.com/?kbid=954155>: Security Update (Installed 01ca56402c10e74d by 'S-1-5-18')
    KB955020 <http://support.microsoft.com/?kbid=955020>: Update (Installed 01ca408d02d925c8 by 'S-1-5-18')
    KB955302 <http://support.microsoft.com/?kbid=955302>: Update (Installed 01ca408d02db7dd2 by 'S-1-5-18')
    KB956250 <http://support.microsoft.com>: Update (Installed 01ca66e5e6fc6b70 by 'S-1-5-21-501351562-481299158-1019697294-11592')
    KB958481 <http://support.microsoft.com/?kbid=958481>: Update (Installed 01ca408d02db7dd2 by 'S-1-5-18')
    KB958483 <http://support.microsoft.com/?kbid=958483>: Update (Installed 01ca408d02ddd5dc by 'S-1-5-18')
    KB958644 <http://support.microsoft.com/?kbid=958644>: Security Update (Installed 01ca57f748bfe059 by 'S-1-5-21-2756995651-916083937-3196967445-500')
    KB958869 <http://support.microsoft.com/?kbid=958869>: Security Update (Installed 01ca56402c10e74d by 'S-1-5-18')
    KB959772 <http://support.microsoft.com/?kbid=959772>: Update (Installed 01ca408d02ddd5dc by 'S-1-5-18')
    KB968389 <http://support.microsoft.com/?kbid=968389>: Update (Installed 01ca408d02e02de6 by 'S-1-5-18')
    KB968816 <http://support.microsoft.com/?kbid=968816>: Security Update (Installed 01ca45c1ebfd041f by 'S-1-5-18')
    KB971486 <http://support.microsoft.com/?kbid=971486>: Security Update (Installed 01ca56402c1348ae by 'S-1-5-18')
    KB972594 <http://support.microsoft.com/?kbid=972594>: Security Update (Installed 01ca408d02e02de6 by 'S-1-5-18')
    KB973525 <http://support.microsoft.com/?kbid=973525>: Security Update (Installed 01ca56402c1348ae by 'S-1-5-18')
    KB974455 <http://support.microsoft.com/?kbid=974455>: Security Update (Installed 01ca56402c15aa0f by 'S-1-5-18')
    KB974571 <http://support.microsoft.com/?kbid=974571>: Security Update (Installed 01ca56402c15aa0f by 'S-1-5-18')
    KB975467 <http://support.microsoft.com/?kbid=975467>: Security Update (Installed 01ca56402c15aa0f by 'S-1-5-18')
    KB975517 <http://support.microsoft.com/?kbid=975517>: Security Update (Installed 01ca56402c180b70 by 'S-1-5-18')
    
    2 回复  |  直到 16 年前
        2
  •  1
  •   Nathan Wheeler    16 年前

    字符串开头是NTP时间戳。你不能把这些变成一个 System.DateTime 很容易。

    String s = "01c9d3cb9b46a87c";
    DateTime dt = DateTime.FromFileTime(Int64.Parse(s, System.Globalization.NumberStyles.HexNumber));
    

    有关NTP时间戳的更多信息,请阅读以下RFC(别担心,它实际上是一个“短”RFC): http://www.faqs.org/rfcs/rfc958.html

    字符串末尾是帐户的安全标识符 Local System 是 'S-1-5-18' .

    有关安全标识符的详细信息,请参阅: http://technet.microsoft.com/en-us/library/cc780850%28WS.10%29.aspx

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