. Create backup copy of c:\WINDOWS\notepad.exe. Just in case you want to revert back to this.
2. Create a copy of your favorite text editor and rename it to Notepad.exe. In my case it is the very cool Notepad2.
3. Copy the new Notepad.exe to the following folders in the same order quickly
   a. C:\WINDOWS\ServicePackFiles\i386\
   b. C:\WINDOWS\system32\dllcache
   c. C:\WINDOWS\system32
   d. C:\WINDOWS
   (for WinXP prior to SP2 ignore folder a.)
4. Have fun with the new Notepad.

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