对程序运行结果有疑问

;#Mode=CON
  .386
  .model flat, stdcall
  option casemap :none

  include windows.inc
  include user32.inc
  include kernel32.inc
  include masm32.inc

  includelib user32.lib
  includelib kernel32.lib
  includelib masm32.lib
  include macro.asm

  .data?
      Handle1  dd  ?
      Handle2  dd ?
      buffer  db 100 dup(?)
  .CODE
  START:
    ;get the handle of the taskbar
      invoke FindWindow,CTEXT('Shell_TrayWnd'),NULL        
      mov    Handle1,eax
    ;get the handle of the start button from the taskbar
      invoke FindWindowEx,Handle1,0,CTEXT('Button'),NULL  
      mov    Handle2,eax
    ;set the text
      invoke SetWindowText,Handle2,CTEXT('Z..T')
    ;used to refresh the caption of the start button
      invoke SendMessage,Handle2,WM_MOUSEMOVE,0,0   
  ; 运行之后
      ;暂停显示,回车键关闭
      invoke StdIn,addr buffer,sizeof buffer
      invoke ExitProcess,0  
  end START 程序运行之后 开始菜单上面的字  就变成了‘Z..T’，但为什么 操作一些程序之后，它上面的字又变回‘开始’了呢（比如打开任务管理器操作）我看的是aogo网站的教程，用的他们自创的编辑器，题目不明白的联系QQ494000816，在线等答案