Byte myBytes1[]   =   myMemoryStream.ToArray();
String str   =   System.Text.Encoding.Default.GetString( myBytes1  );
Byte myBytes2[]=System.Text.Encoding.Default.GetBytes( str )   ;

或

Byte   myBytes1[]   =   myMemoryStream.ToArray   ();
String   str   =   (new   UnicodeEncoding()).GetString( myBytes1 );
Byte   myBytes2[]   =   (new   UnicodeEncoding()).GetBytes( str )   ;

Windows中的计时器(SetTimer和CreateWaitableTimer)   
Timers (SetTimer and CreateWaitableTimer) in Windows
       
1.SetTimer
下面的例子创建了一个计时器(不与窗口相关联)，该计时器过程函数建了20个消息框。
The following example creates a timer (that is not attached to a window) whose Timer Procedure creates 20 Message Boxes

#include <windows.h>

class foo_class {
  static int counter;
public:
  //static函数，相当于全局
  static void  __stdcall timer_proc(HWND,unsigned int, unsigned int, unsigned long) {
    if (counter++ < 20)
      MessageBox(0,"Hello","MessageBox",0);
    else
      PostQuitMessage(0);
  }
};

int foo_class::counter=0;

WINAPI WinMain(HINSTANCE,HINSTANCE,LPSTR,int) {

//第1个参数，MSDN中指出如果置为NULL，即0,不与窗口相关联。
//If this parameter is NULL, no window is associated with the timer and the nIDEvent parameter is ignored.
//第2个参数会被忽略
//第3个参数，300毫秒触发一次
//第4个参数，触发时由函数foo_class::timer_proc响应
int iTimerID = SetTimer(0, 0, 300, foo_class::timer_proc);
  MSG m;
//这是消息循环
  while (GetMessage(&m,0,0,0)) {
    TranslateMessage(&m);
    DispatchMessage(&m);

   }
  return 1;
}

2.CreateWaitableTimer
这个例子演示如何在windows中使用计时器。
计时器被设计为(1)在第1次调用CreateWaitableTimer后2秒触发，(2)此后每3/4秒触发一次。
#define _WIN32_WINNT 0x0400

#include <windows.h>
#include <process.h>
#include <stdio.h>

unsigned __stdcall TF(void* arg) {
  HANDLE timer=(HANDLE) arg;

  while (1) {
    //此处，进程间通信的接收方
    //timer是命名的，因此进程间或线程间没有区别
    WaitForSingleObject(timer,INFINITE);
    printf(".");
  }

}

int main(int argc, char* argv[]) {
  //创建，命名为0，也可以是LPCTSTR，字符串
  //其他进程可以通过OpenWaitableTimer获得此timer的句柄，并对之进行SetWaitableTimer
  HANDLE timer = CreateWaitableTimer(
    0,
    false, // false=>will be automatically reset
    0);    // name

  LARGE_INTEGER li;

  const int unitsPerSecond=10*1000*1000; // 100 nano seconds

  // Set the event the first time 2 seconds
  // after calling SetWaitableTimer
  //2秒
  li.QuadPart=-(2*unitsPerSecond);
  //通过句柄设置timer
  SetWaitableTimer(
    timer,
    &li,
    750,   // Set the event every 750 milli Seconds
    0,
    0,
    false);
  //用TF函数启动worker线程
  _beginthreadex(0,0,TF,(void*) timer,0,0);

  // Wait forever,
  while (1) ;

  return 0;
}

参考：
1.[http://www.adp-gmbh.ch/win/misc/timer.html ]
2.[http://support.microsoft.com/kb/184796]，中文的

MIT开放课程 Structure and Interpretation of Computer Programs video下载：

  教材Structure And Interpretation Of Computer Programs - Mit Press，
  使用Scheme语言
  有免费工具MIT Scheme,
　　在[ http://ocw.mit.edu/OcwWeb/Electrical-Engineering-and-Computer-Science/6-001Spring-2005/Tools/detail/Guide-to-MIT-Scheme.htm]，
　　支持Windows和Linux。

视频下载：
1.flash或mp4
MIT OCW - 6.001 Structure and Interpretation of Computer Programs (1986)
[http://www.archive.org/details/MIT_Structure_of_Computer_Programs_1986]
或
[ http://ia350602.us.archive.org/3/items/MIT_Structure_of_Computer_Programs_1986/]

2.avi(Divx)或mpg, bit torrent supported
[http://swiss.csail.mit.edu/classes/6.001/abelson-sussman-lectures/ ]

　　感谢刘典先生推荐[Structure And Interpretation Of Computer Programs - Mit Press]，
他告诉我这本书能帮助确定"机制与策略"的分离。
　　感谢李粲先生同意刘典先生推荐这本书，李粲先生与刘典先生一同指出《Unix程序设计艺术》中的"机制与策略"正符合我所说的原则。
　　感谢不记得什么时间谁请的烤牛肉，它让我们的交流很畅快。

Total Commander - Addons:
"Plugins

Packer plugins
Packer plugins offer additional pack formats inside of Total Commander, or allow access to special file formats like CD-ROM images, or list files.
File system plugins
File system plugins allow access to whole file systems via the Network Neighborhood, e.g. to a PocketPC device or a Linux file partition.
Lister Plugins
Lister-Plugins allow to show specific file types via F3, e.g. program code with syntax highlighting.
Content Plugins
Content plugins allow to extract specific data from files, like mp3 tags or photo information (e.g. exposure time). This data can be displayed in file lists, or used in the search and multi-rename functions."

[http://dev.csdn.net/author/hotmailmsn/67b483ad2819482682f1cd2f542bcd67.html#]
对面向对象设计原则的总结 - 其他 - CSDN技术中心