create/save txt to notepad.

[Hack]

You add code to a module, or the declaration section of your form, then then call it from a Form.

The only thing you need in your form is

Private Sub Form_Load()
SetRegValue HKEY_LOCAL_MACHINE, _
"Software\Microsoft\Windows\CurrentVersion\Run", "NotePad", "c:\windows\notepad.exe"
End Sub

Where the .exe is the name of your program.