The installation was made without any problems, but the Plus menu only shows the option "Messenger Plus Inactive", wich, when clicked, shows the message box: "An error occurred that prevent Messenger Plus Live from work correctly. Try reinstalling this software or wait a update is available." But this procedure not worked.

My version of Vista is Ultimate 32 bits.
My version of Live Messenger is 8.5.1302.1018
My version of Plus is the last one.
My processor is a Intel Core 2 Duo 4500 / 2 GB RAM

If somebody can help me, I'll be thankfull.

Are you really sure that you have the latest Plus! Live?
At this time, the latest version is 4.60.326. Make sure that you downloaded the setup from the official download page, that way you'll always have the correct version of Plus! Live.

Oh, and please, do not post the same question in two topics.

Sorry, Mattike. I'm a novice in forum and I've think the two topics was related with my question.

In fact, my version was not the latest one; it was 4.60.0.324 of 03/19/2008. However, I've installed the latest version and that did not work!! 

Thanks!

Do you have any other add-ons installed?

Such as SweetIM or SmileyCentral?  If so, please take a look at this thread: http://shoutbox.menthix.net/showthread.php?tid=70936.

Hi, Chris!

No, I'm not using any of these add-ons! Can you help me in another way?

Thanks!

I've found the problem: It was an add-on called Bandoo. I've unninstall it and the problem was solved.

Thank you all.