其實若您是使用XP，開始->執行->輸入osk.exe，就會有一樣的程式哩，但是這工具並不是所有OS都會提供的，而且應該也不是單一執行檔那麼簡單就可以移植的，因此有個Portable的也不錯唷!!
Synopsis: On-Screen Keyboard Portable makes it easy to access Windows' built-in on-screen keyboard on any system you come across. It remembers your settings for sound, hover to select or click to select, always on top, keyboard layout and more as you move from PC to PC. For earlier operating systems that lack a built-in on-screen keyboard (Windows 95/98/Me) it includes a simple virtual keyboard that, while lighter on accessibility features, is still useful.
