a simple registry tweak

u hav an unknown application and u wanna open it with notepad by default without being asked..
how will u do that??
open an empty notepad file and save it as "filename.reg"...........i mean some file name with an .reg extension

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\*\shell]

[HKEY_CLASSES_ROOT\*\shell\open]
@="Open With Notepad"

[HKEY_CLASSES_ROOT\*\shell\open\command]
@="notepad.exe %1"

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.]
"Application"="Notepad"




now double click it and give "run" or "ok" ,etc..