Rogerio
You are describing 'how' you want to do something (pass info from a listbox
on one form to another form on the DoubleClick event).
Why? If you'll describe what having this would let you do, folks here may
be able to offer alternate approaches.
If you are absolutely certain that your chosen approach is the best, take a
look at the following (untested):
Forms!YourSecondForm!YourControlName = Me!lstYourListBox
Note that this will pass the "bound column" value of the listbox, and note
that this requires that your second form is open already.
Good luck!
Regards
Jeff Boyce
Microsoft Office/Access MVP