在子项值中查找匹配项

我还没有对它进行广泛的测试,它几乎没有错误处理代码,但这应该能帮助你开始。

public static bool IsRegistered(string name, string dllPath)
{
    RegistryKey typeLibKey = Registry.ClassesRoot.OpenSubKey("TypeLib");
    foreach (string libIdKeyName in typeLibKey.GetSubKeyNames())
    {
        RegistryKey libIdKey = typeLibKey.OpenSubKey(libIdKeyName);
        foreach (string versionKeyName in libIdKey.GetSubKeyNames())
        {
            RegistryKey versionKey = libIdKey.OpenSubKey(versionKeyName);
            string regName = (string)versionKey.GetValue("");
            if (regName == name)
            {
                foreach (string itterKeyName in versionKey.GetSubKeyNames())
                {
                    int throwawayint;
                    if (int.TryParse(itterKeyName, out throwawayint))
                    {
                        RegistryKey itterKey = versionKey.OpenSubKey(itterKeyName);
                        string regDllPath = (string)itterKey.OpenSubKey("win32").GetValue("");
                        if (regDllPath == dllPath)
                        {
                            return true;
                        }
                    }
                }
            }
        }
    }

    return false;
}

}

看看微软。Win32.Registry和微软。Win32.RegistryKey。

public void Foo()
{
   foreach (string s in Microsoft.Win32.Registry.CurrentUser.GetSubKeyNames())
   {
      Microsoft.Win32.RegistryKey rk = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(s);
      // check here for the dll value and exit if found
      // recurse down the tree...
   }
}