Thank But the problem then is that everytime the user put the focus on this password field its the password deleted, and I would like to do it only when the user wants to change the password ( presses one key on it), the best idea is to select all the text in OnSetFocus, but I have tried and I don't know why but it don't selects nothing ( only selects all the text by default, if the user presses double click or if he go with the tab key, with one click with the mouse it selects nothing ( put the focus, executes SetSel but nothing happens).

Can you help me a little bit more..., Thanks, Bye !
Braulio