Associare Programma A File senza estensione

assoc .="No Extension" ftype "No Extension"="C:\path\to\my editor.exe" "%1"

DA REGISTRO

• Start the registry editor (regedit.exe)
• Move to HKEY_CLASSES_ROOT
• From the Edit menu select New - Key
• Enter a name of '.' and press Enter (don't type the quotes)
• Select the new '.' key
• Double click the (Default) value
• Change to the HKEY_CLASSES_ROOT used to open, e.g. NOTEPAD for the notepad.exe application NOTEPAD
• Click OK

If you now double click on a file with no extension it will open with the application selected.

To check what an existing application used look at its entry under HKEY_CLASSES_ROOT, e.g. HKEY_CLASSES_ROOT.doc uses Word.Document.8 so if you wanted this as your default editor you would change HKEY_CLASSES_ROOT.(Default) to Word.Document.8.

Any method which avoids the need to edit the registry is as follows:

• Open Explorer - View - Folder Options... - File Types - New Type:
• Description of type: Text (any description, you can type in)
• Associated extension: . (just a period)
• Actions: - new...
• Action: open
• Application used to perform action: c:\winnt\notepad.exe
• Click ok, then ok again