How can i automatically login a user? I have his ID, how can i log him in withought the password?

I send an email with registration confirmation, there is a secure link to my app, when he cliks there I whant to activate his account and then automatically login.

Can anyone help me?

Hi Pedro,
If you are using version 6, you have a action (check in the references for the System) called Login and this action receives a User Id, if you have the User Id you can login that user..

just make sure that there are no user logged in.
Carlos Rocha
Hi Pedro, 

you can use the Login action form the System eSpace. Please be aware of security issues using this aproach.


Thank you very much, i was trying to use the User_Login on the Users eSpace and that one asks for a password.