Your computer has a newer version of Windows Messenger 5.1 than the one you are trying to install.

I am trying to install Windows Messenger 5.1 and I receive the
following error message when I do so:
Product: Windows Messenger 5.1 -- Your computer has a newer version of
Windows Messenger 5.1 than the one you are trying to install. To
install an older version, first remove the current version (click
Start, Settings, Control Panel, Add or Remove, Windows Messenger 5.1),
and then run this Set Up again.

There are no versions of Windows Messenger listed in Add/Remove
Programs.

I have removed Windows Messenger from Add/Remove Programs -
Components.

I have tried Start - Run: msiexec /x
{C3A6819F-62D3-4750-AF1C-28206DDF2C2E} but that returns the error,
"This action is only valid for products that are currently installed."

I have tried removing HKLM and HKCU
/SOFTWARE/Microsoft/MessengerService keys.

I have run messenger.msi /lv and found this section (let me know if
someone would like to see more):
Action start 13:57:50: FindRelatedProducts.
MSI (s) (0C:2C) [13:57:50:861]: Skipping FindRelatedProducts action:
already done on client side
Action ended 13:57:50: FindRelatedProducts. Return value 0.
MSI (s) (0C:2C) [13:57:50:861]: Doing action:
CheckOnTablet.CAAE7742_6D28_4224_99DC_3B95092D4DDC
Action start 13:57:50:
CheckOnTablet.CAAE7742_6D28_4224_99DC_3B95092D4DDC .
MSI (s) (0C:18) [13:57:50:861]: Invoking remote custom action. DLL:
C:\WINDOWS\Installer\MSI32.tmp, Entrypoint: IsTabletPC
MSI (s) (0C:1C) [13:57:50:861]: Generating random cookie.
MSI (s) (0C:1C) [13:57:50:877]: Created Custom Action Server with PID
1944 (0x798).
MSI (s) (0C:24) [13:57:50:908]: Running as a service.
MSI (s) (0C:24) [13:57:50:908]: Hello, I'm your 32bit Impersonated
custom action server.
MSI (s) (0C!50) [13:57:50:908]: PROPERTY CHANGE: Adding IsTabletPC
property. Its value is '0'.
Action ended 13:57:50:
CheckOnTablet.CAAE7742_6D28_4224_99DC_3B95092D4DDC . Return value 1.
MSI (s) (0C:2C) [13:57:50:908]: Doing action:
CheckOnTablet.90B92711_707E_4B8F_BC75_2D5171F9C340
Action start 13:57:50:
CheckOnTablet.90B92711_707E_4B8F_BC75_2D5171F9C340 .
MSI (s) (0C:64) [13:57:50:924]: Invoking remote custom action. DLL:
C:\WINDOWS\Installer\MSI33.tmp, Entrypoint: IsTabletPC
Action ended 13:57:50:
CheckOnTablet.90B92711_707E_4B8F_BC75_2D5171F9C340 . Return value 1.
MSI (s) (0C:2C) [13:57:50:940]: Doing action: NewerMessengerInstalled
Action start 13:57:50: NewerMessengerInstalled.
DEBUG: Error 2851: The data for the icon infobmp is not valid
The installer has encountered an unexpected error installing this
package. This may indicate a problem with this package. The error code
is 2851. The arguments a infobmp, ,
MSI (s) (0C:2C) [13:57:51:440]: Product: Windows Messenger 5.1 -- Your
computer has a newer version of Windows Messenger 5.1 than the one you
are trying to install. To install an older version, first remove the
current version (click Start, Settings, Control Panel, Add or Remove,
Windows Messenger 5.1), and then run this Set Up again.

Action ended 13:57:51: NewerMessengerInstalled. Return value 3.
Action ended 13:57:51: INSTALL. Return value 3.

I am completely out of ideas on how to get messenger 5.1 installed, any
help would be appriciated.

I forgot to mention, I also installed MSN Messenger 7.5 and then did a
clean uninstall of it (Add/Remove Programs) but that also did not
resolve the issue.

Any ideas besides completely rebuilding my system? There must
(assuming) be a way to forcibly/manually remove whatever is
conflicting. I am not scared of the registry, the command line or debug
logs so don't hesitate to suggest something crazy (as long as it gets
the job done)!

wrote:
I am trying to install Windows Messenger 5.1 and I receive the
following error message when I do so:
Product: Windows Messenger 5.1 -- Your computer has a newer version of
Windows Messenger 5.1 than the one you are trying to install. To
install an older version, first remove the current version (click
Start, Settings, Control Panel, Add or Remove, Windows Messenger 5.1),
and then run this Set Up again.

There are no versions of Windows Messenger listed in Add/Remove
Programs.

I have removed Windows Messenger from Add/Remove Programs -
Components.

I have tried Start - Run: msiexec /x
{C3A6819F-62D3-4750-AF1C-28206DDF2C2E} but that returns the error,
"This action is only valid for products that are currently installed."

I have tried removing HKLM and HKCU
/SOFTWARE/Microsoft/MessengerService keys.

I have run messenger.msi /lv and found this section (let me know if
someone would like to see more):
Action start 13:57:50: FindRelatedProducts.
MSI (s) (0C:2C) [13:57:50:861]: Skipping FindRelatedProducts action:
already done on client side
Action ended 13:57:50: FindRelatedProducts. Return value 0.
MSI (s) (0C:2C) [13:57:50:861]: Doing action:
CheckOnTablet.CAAE7742_6D28_4224_99DC_3B95092D4DDC
Action start 13:57:50:
CheckOnTablet.CAAE7742_6D28_4224_99DC_3B95092D4DDC .
MSI (s) (0C:18) [13:57:50:861]: Invoking remote custom action. DLL:
C:\WINDOWS\Installer\MSI32.tmp, Entrypoint: IsTabletPC
MSI (s) (0C:1C) [13:57:50:861]: Generating random cookie.
MSI (s) (0C:1C) [13:57:50:877]: Created Custom Action Server with PID
1944 (0x798).
MSI (s) (0C:24) [13:57:50:908]: Running as a service.
MSI (s) (0C:24) [13:57:50:908]: Hello, I'm your 32bit Impersonated
custom action server.
MSI (s) (0C!50) [13:57:50:908]: PROPERTY CHANGE: Adding IsTabletPC
property. Its value is '0'.
Action ended 13:57:50:
CheckOnTablet.CAAE7742_6D28_4224_99DC_3B95092D4DDC . Return value 1.
MSI (s) (0C:2C) [13:57:50:908]: Doing action:
CheckOnTablet.90B92711_707E_4B8F_BC75_2D5171F9C340
Action start 13:57:50:
CheckOnTablet.90B92711_707E_4B8F_BC75_2D5171F9C340 .
MSI (s) (0C:64) [13:57:50:924]: Invoking remote custom action. DLL:
C:\WINDOWS\Installer\MSI33.tmp, Entrypoint: IsTabletPC
Action ended 13:57:50:
CheckOnTablet.90B92711_707E_4B8F_BC75_2D5171F9C340 . Return value 1.
MSI (s) (0C:2C) [13:57:50:940]: Doing action: NewerMessengerInstalled
Action start 13:57:50: NewerMessengerInstalled.
DEBUG: Error 2851: The data for the icon infobmp is not valid
The installer has encountered an unexpected error installing this
package. This may indicate a problem with this package. The error code
is 2851. The arguments a infobmp, ,
MSI (s) (0C:2C) [13:57:51:440]: Product: Windows Messenger 5.1 -- Your
computer has a newer version of Windows Messenger 5.1 than the one you
are trying to install. To install an older version, first remove the
current version (click Start, Settings, Control Panel, Add or Remove,
Windows Messenger 5.1), and then run this Set Up again.

Action ended 13:57:51: NewerMessengerInstalled. Return value 3.
Action ended 13:57:51: INSTALL. Return value 3.

I am completely out of ideas on how to get messenger 5.1 installed, any
help would be appriciated.

-
oups.com :

Any ideas besides completely rebuilding my system? There must
(assuming) be a way to forcibly/manually remove whatever is
conflicting. I am not scared of the registry, the command line or
debug logs so don't hesitate to suggest something crazy (as long as
it gets the job done)!

A few ideas:

- download the latest version again:
http://download.microsoft.com/downlo.../messenger.msi
and put the file in an empty folder before installing.

- before installing WM 5.1:
. try removing .tmp files in C:\Windows\Installer.
. or try renaming (or emptying) C:\Windows\Installer.

- execute this command:
msiexec /unreg

then this one:
msiexec /regserver

- you could use File Monitor to try to understand what's going on with
this infobmp file ("Error 2851: The data for the icon infobmp is not
valid").

File Monitor:
http://www.sysinternals.com/Utilities/Filemon.html
http://www.sysinternals.com/Files/FilemonNt.zip

I was finally able to get the latest Windows Messenger installed. I had
to do the following command:
msiexec /i messenger.msi REINSTALLMODE=aums

This forced the installation ignoring any version checking that was
being done.