[quanvo81]

Originally Posted by quanvo81

It doesn't work for me at all
All the users who receive the invitation mails, when they click on the link that take to register, they will see a message like this:
Our records show that you have already registered under the name of "NAME OF THE PERSON WHO SEND THE INVITATIONS". If you have lost your password, click here. If you would like to modify your profile, click here.
It means if a user name FX sent the invitation, it will say
Our records show that you have already registered under the name of FX. If you have lost your password, click here. If you would like to modify your profile, click here.
Click Uninstall.

I think the reasons because I stayed login, when I logout and try the invitation, it works.
humm, anyway, re - click Install.