Greetings,

Do you have any AntiSpyware apps running and monitoring the system like Ad-aware or Spybot?
If so, turn them off temporarily, then re-run the 5.1 installer, choose Repair and you should
be good to go.
____________________________________________
Jonathan Kay
Microsoft MVP - MSN Messenger/Windows Messenger
Associate Expert
http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources - http://messenger.jonathankay.com
All posts unless otherwise specified are (c) 2005 Jonathan Kay.
You *must* contact me for redistribution rights.

"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:4FD0f.12793$VS3.684140@phobos.telenet-ops.be...
> If I try and update 4.7 to 5.1 it breaks Acrobat reader !
>
> Messenger 5.1 appears to install itself ok but when I next try and open the
> Acrobat Reader the messenger installer runs again and I get this on screen
> error....
>
> An error occured during the installation of assembly component
> {C5125B5C-42CD-4C8C-B9E0-B738E6E814A6} HRESULT:-2147024864
>
> The problem appears to be related to these events in the application log...
>
> Event Type: Information
> Event Source: MsiInstaller
> Event Category: None
> Event ID: 11729
> Date: 04/10/2005
> Time: 23:09:27
> User: N/A
> Computer: <snip>
> Description:
> Product: Windows Messenger 5.1 -- Configuration failed.
>
> Event Type: Warning
> Event Source: MsiInstaller
> Event Category: None
> Event ID: 1004
> Date: 04/10/2005
> Time: 23:09:28
> User: N/A
> Computer: <snip>
> Description:
> Detection of product '{9D1C26BD-E792-4159-9D16-07EA222D8EF0}', feature
> 'MsgrFeat', component '{462CA1AD-90D6-4FC1-A424-F18BF7817AAA}' failed. The
> resource 'C:\Program Files\Messenger\Msgsc.dll' does not exist.
>
> Event Type: Warning
> Event Source: MsiInstaller
> Event Category: None
> Event ID: 1001
> Date: 04/10/2005
> Time: 23:09:28
> User: N/A
> Computer: <snip>
> Description:
> Detection of product '{9D1C26BD-E792-4159-9D16-07EA222D8EF0}', feature
> 'MsgrFeat' failed during request for component
> '{0495B4B9-264D-46D5-8C55-238BDC3EFBD4}'
>
> Event Type: Error
> Event Source: MsiInstaller
> Event Category: None
> Event ID: 11935
> Date: 04/10/2005
> Time: 23:10:45
> User: N/A
> Computer: <snip>
> Description:
> Product: Windows Messenger 5.1 -- Error 1935. An error occured during the
> installation of assembly component {C5125B5C-42CD-4C8C-B9E0-B738E6E814A6}.
> HRESULT: -2147024864. assembly interface: IAssemblyCacheItem, function:
> Commit, assembly name:
> Microsoft.Windows.Networking.RtcDll,type="win32",v ersion="5.2.1004.3",proces
> sorArchitecture="x86",publicKeyToken="6595b64144cc f1df"
>
>
>