Windows Messenger is not certified as a Windows Vista compatible
application, it has been succeeded by Microsoft Office Communicator.

[url]http://office.microsoft.com/en-us/communicator/FX101729051033.aspx[/url]

For Consumers, you can try Windows Live Messenger:
[url]http://get.live.com/messenger/overview[/url]
--
Andre
Blog: [url]http://adacosta.spaces.live.com[/url]
My Vista Quickstart Guide:
[url]http://adacosta.spaces.live.com/blog/cns!E8E5CC039D51E3DB!9709.entry[/url]

"malizaco" <malizaco@discussions.microsoft.com> wrote in message
news:E68FBF91-CDB3-426A-B625-6F6DEAADB7F8@microsoft.com...[color=blue]
> Excuseme, I tried this solution but I has a problema after because the msn
> close sesion frecuently, and is not posible desktop sharing.
>
> Excuseme my poor English... Thank you for you help
>
> "Andre Da Costa [Extended64]" wrote:
>[color=green]
>> Try disabling UAC then install Windows Messenger, click Start > All
>> Programs[color=darkred]
>> > Accessories > Run > type in MSCONFIG > OK > Tools (tab) > scroll down
>> >[/color]
>> select "Disable UAP" > Launch > close command prompt > restart system and
>> try the install again.
>> --
>> --
>> Andre
>> Windows Connected | [url]http://www.windowsconnected.com[/url]
>> Extended64 | [url]http://www.extended64.com[/url]
>> Blog | [url]http://www.extended64.com/blogs/andre[/url]
>> [url]http://spaces.msn.com/members/adacosta[/url]
>>
>> "Rig" <Rig@discussions.microsoft.com> wrote in message
>> news:7169942A-3B6D-47F0-9617-4C2317BCF0A3@microsoft.com...[color=darkred]
>> > I'm running Vista Beta 2 Build 5384 and I'm unable to install Windows
>> > Messenger (not to be confused with MSN Messenger or Windows Live
>> > Messenger)
>> > I've attempted to install Windows Messenger 5.1 (5.1.0639) and Windows
>> > Messenger 5.1 (5.1.0701) and they both display the same error message.
>> >
>> > If I start the installer and get the welcome screen, I click Next, I
>> > then
>> > accept the EULA after a few seconds Windows Vista's User Account
>> > Control
>> > (UAC) pops up asking if I wish to Canel or Allow this application to
>> > access
>> > my computer, so I click on Allow.
>> >
>> > Next I get the message "Windows Messenger 5.1 was not installed - This
>> > installation was interrupted. No changes were made to your computer
>> > system.
>> > Please try running this installation again"
>> > If I retry the install I get the exact same error.
>> >
>> > I need to be able to use Windows Messenger, as opposed to MSN Messenger
>> > or
>> > Windows Live Messenger due to the ability of Windows Messenger allowing
>> > me
>> > to
>> > use the Exchange Server as an IM server and thus communicate with other
>> > members of our company.[/color]
>>
>>
>>[/color][/color]