How can I launch (run) C:\Windows\notepad.`.exe` after I rename it to MSnotepad.`.exe`?

Question

On Windows 7 (32-bit) I want to

A. Replace notepad.exe with NoteTab Pro
B. Still be able to run the original notepad program on occasion.

What I've done so far accomplishes goal A:

• Take ownership of the Microsoft installed copies of Notepad

  takeown /f C:\Windows\notepad.exe /D
  takeown /f C:\Windows\system32\notepad.exe /D
  

• Grant Full Control to the Administrators group (of which I am a member)

  echo y | Icacls C:\Windows\notepad.exe /Grant Administrators:F
  echo y | Icacls C:\Windows\system32\notepad.exe /Grant Administrators:F
  

• Copy the original notepad.exe to another name

  copy C:\Windows\notepad.exe C:\Windows\MSnotepad.exe
  copy C:\Windows\system32\notepad.exe C:\Windows\system32\MSnotepad.exe
  

• Copy the NoteTab launcher EXE to Windows and Windows\System32

  echo y | copy "C:\Program Files\NoteTab Pro 6\NotePad.stb" C:\Windows\system32\notepad.exe
  echo y | copy "C:\Program Files\NoteTab Pro 6\NotePad.stb" C:\Windows\notepad.exe
  

• Create the INI files required by the NoteTab launcher

  echo [Application]>C:\Windows\system32\notepad.ini
  echo ExeName="C:\Program Files\NoteTab Pro 6\NotePro.exe">>C:\Windows\system32\notepad.ini
  echo.>>C:\Windows\system32\notepad.ini
  echo [Application]>C:\Windows\notepad.ini
  echo ExeName="C:\Program Files\NoteTab Pro 6\NotePro.exe">>C:\Windows\notepad.ini
  echo.>>C:\Windows\notepad.ini
  

When I attempt to launch either C:\Windows\MSnotepad.exe or C:\Windows\system32\MSnotepad.exe nothing happens and no error is in the Windows system or application logs.

Any ideas?