Greetings,

What's mentioned here is for an earlier version (note the post is from 2004).

You can uninstall it with this instead:
msiexec /x {A44413DC-17D5-4F0B-A128-8B590B20323C}

In most cases, throwing away Windows Messenger and using Windows Live Messenger
(http://get.live.com/messenger/overview) will solve the issue you're experiencing however.

--
Jonathan Kay
Microsoft MVP - Windows Live Messenger
MSN Messenger/Windows Messenger
MessengerGeek Blog: http://www.messengergeek.com
Messenger Resources: http://messenger.jonathankay.com
(c) 2008 Jonathan Kay - If redistributing, you must include this signature or citation
--


"rickyelton" <rickyelton@discussions.microsoft.com> wrote in message
news:004D4FBC-E73A-467F-9E3D-C463E82A35A4@microsoft.com...
> Jonathan, I tried the steps for removing the Windows Messenger 5.1 and get
> the message that it can only be used to remove installed products. So I went
> back through the installation again. Then tried the remove steps and get the
> same message. I wanted to install a previous version to see if that might
> clear my problem. You may can help me with this. I recently installed a
> Linksys WRT54G router. Since then Windows Messenger signs me off and back on
> about every 15 to 30 minutes. Linksys Support was no help. It doesn't happen
> if I remove the router. Thanks for any help.
>
> "Jonathan Kay [MVP]" wrote:
>
>> Greetings,
>>
>> To remove Windows Messenger 5.1, click Start, then Run, and enter the following:
>> msiexec /x {C3A6819F-62D3-4750-AF1C-28206DDF2C2E}
>> then click OK.
>>
>> It may report that the prduct isn't installed, if so, reinstall 5.1 and then remove it.
>> ____________________________________________
>> Jonathan Kay
>> Microsoft MVP - Windows Messenger/MSN Messenger
>> Associate Expert
>> http://www.microsoft.com/windowsxp/expertzone/
>> Messenger Resources - http://messenger.jonathankay.com
>> All posts unless otherwise specified are (c) 2004 Jonathan Kay.
>> You *must* contact me for redistribution rights.
>>
>> "Fatgrass2003" <Fatgrass2003@discussions.microsoft.com> wrote in message
>> news:0980A4E5-16A1-4855-BE3F-4D540574A0A2@microsoft.com...
>> > How do you uninstall Windows Messenger 5.1, I would like to go back the
>> > previous version asap (messenger 5.0 xp).
>> >
>> > Unfortunately I am receiving the following error box when trying to
>> > downgrade from version 5.1 to messenger 5.0 -
>> >
>> > "your computer as a newer version of windows messenger 5.0 than the one you
>> > are trying to install. To install an older version, first remove the current
>> > version click Start, Settings, Control Panel, Add Remove Windows Messenger
>> > 5.0 - and then run setup again"
>> >
>> > Firstly the add/remove option for Messenger 5.1 is not listed, also I have
>> > tried running the following scripts which does no work (although they
>> > physically remove messenger files, I still receive the same error when
>> > install messenger 5.0)
>> >
>> > Tried the following -
>> >
>> > Re-Applying XP SP2
>> > Removing SP2 and Reapply
>> > Downgrading to 4.7 then upgrading to 5.0
>> > RunDll32 advpack.dll,LaunchINFSection %windir%\INF\msmsgs.inf,BLC.Remove
>> > Remove Messenger from Add/Remove Additional Components
>> >
>> > Tried all the above and still cant downgrade from messenger 5.1 to messenger
>> > 5.0, whats the trick guys - I'm stuck and out of ideas!!!!
>> >
>> >
>> >
>>
>>
>>