You can define shell extensions for files with no file extension by using Regedt32 to navigate to:
HKEY_CLASSES_ROOT
01. Select the HKEY_CLASSES_ROOT key, an alias for HKEY_LOCAL_MACHINE\SOFTWARE\Classes.
02. On the Edit menu, Add Key and type . into Key Name.
03. Click OK.
04. With the HKEY_CLASSES_ROOT\. key selected, Add Value, but leave the Value Name blank.
05. Click OK to define this <No Name> value as the default type REG_SZ (string).
06. In the String Editor, type JSIINC and click OK.
07. Select the HKEY_CLASSES_ROOT key.
08. On the Edit menu, Add Key and type JSIINC into Key Name and click OK.
09. Select the HKEY_CLASSES_ROOT\JSIINC key.
10. On the Edit menu, Add Key and type shell into Key Name and click OK.
11. Select the HKEY_CLASSES_ROOT\JSIINC\shell key.
12. On the Edit menu, Add Key and type open into Key Name and click OK.
13. Select the HKEY_CLASSES_ROOT\JSIINC\shell\open key.
14. On the Edit menu, Add Key and type command into Key Name and click OK.
15. Select the HKEY_CLASSES_ROOT\JSIINC\shell\open\command key.
16. On the Edit menu, Add Value, but leave the Value Name blank.
17. Click OK to define this <No Name> value as the default type REG_SZ (string).
18. In the String Editor, type the full path to the program that will open the file, followed by "%1".
Example: c:\winnt\notepad.exe "%1".
19. Click OK and exit the registry editor.
You can now double click on a file with no extension and it will open using the program defined in step 18.
To define this association with a .REG file:
REGEDIT4 \[HKEY_CLASSES_ROOT\.\] @="JSIINC" \[HKEY_CLASSES_ROOT\JSIINC\] \[HKEY_CLASSES_ROOT\JSIINC\shell\] \[HKEY_CLASSES_ROOT\JSIINC\shell\open\] \[HKEY_CLASSES_ROOT\JSIINC\shell\open\command\] @="c:\\winnt\\notepad.exe \"%1\""NOTE: You may have to alter the path of the last line.
