sfc /scannow faulty for sc.exe.mui?

SystemLook 30.07.11 by jpshortstuff
Log created at 15:43 on 30/06/2013 by aas
Administrator - Elevation successful

========== filefind ==========

Searching for "sc.exe.mui"
C:\tmp\sc.exe.mui --a---- 61952 bytes [08:17 12/04/2011] [08:17 12/04/2011] 581815B20E73E25E183AB6D9FA755173
C:\Windows\System32\en-US\sc.exe.mui --a---- 61952 bytes [04:14 30/06/2013] [08:17 12/04/2011] 581815B20E73E25E183AB6D9FA755173
C:\Windows\System32\es-ES\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:59 13/07/2009] 32ED481B5F544E28688DD8327151EFC5
C:\Windows\SysWOW64\en-US\sc.exe.mui --a---- 61952 bytes [05:35 14/07/2009] [02:04 14/07/2009] 581815B20E73E25E183AB6D9FA755173
C:\Windows\SysWOW64\es-ES\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:40 13/07/2009] E05F4EB56379E702512989D332D2F2EC
C:\Windows\winsxs\amd64_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_en-us_61f244e28ffef5f0\sc.exe.mui --a---- 61952 bytes [05:35 14/07/2009] [02:24 14/07/2009] 8AAAD63B73C03366FA610A238BEE95A6
C:\Windows\winsxs\amd64_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_es-es_61bda1c69025e795\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:59 13/07/2009] 32ED481B5F544E28688DD8327151EFC5
C:\Windows\winsxs\x86_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_en-us_05d3a95ed7a184ba\sc.exe.mui --a---- 61952 bytes [05:35 14/07/2009] [02:04 14/07/2009] 581815B20E73E25E183AB6D9FA755173
C:\Windows\winsxs\x86_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_es-es_059f0642d7c8765f\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:40 13/07/2009] E05F4EB56379E702512989D332D2F2EC

Searching for "join.avi"
C:\tmp\join.avi --a---- 222208 bytes [20:39 13/07/2009] [20:47 10/06/2009] EC9E71D62EE275B9919E4BF797AF7011
C:\Windows\winsxs\amd64_microsoft-windows-tabletpc-inputpanel_31bf3856ad364e35_6.1.7600.16385_none_6d84076d913353c5\join.avi --a---- 222208 bytes [20:39 13/07/2009] [20:47 10/06/2009] 50A31E16F7E6B967DBCBE14E5F3D397B
C:\Windows\winsxs\amd64_microsoft-windows-tabletpc-inputpanel_31bf3856ad364e35_6.1.7601.17514_none_6fb51b358e21d75f\join.avi --a---- 222208 bytes [20:39 13/07/2009] [20:47 10/06/2009] 50A31E16F7E6B967DBCBE14E5F3D397B

-= EOF =-

So the long hex numbers above are MD5 checksums.

We see that there are several types of sc.exe.mui file

1) the one extracted from the official Microsoft DVD, with date 12/04/2011 checksum 581815B20E73E25E183AB6D9FA755173

I copied this file to c:\windows\system32\en-US

2) the one in c:\windows\SysWOW64\en-US dated 14/07/2009, also with checksum 581815B20E73E25E183AB6D9FA755173

the original file in c:\windows\system32\en-US also had this date and this checksum
the 32-bit English version in c:\windows\winsxs also has this date and this checksum

3) the Spanish language versions, same size, same date but two different checksums

4) the 64-bit English version in c:\windows\winsxs also has the date 14/07/09, but slightly different time and different checksum

Here are the sfc details extracted from CBS.log file

With the help from VistaKing, I've managed to solve the problem for the join.avi file.
I had to boot to a rescue disk version of windows and then manually replace the join.avi files with files from an official install disk that I extracted with 7-zip.

I did this for sc.exe.mui too, but after several runnings of sfc /scannow and reboots, it's still giving me an error message:

file [l:20{10}]"sc.exe.mui" of Microsoft-Windows-ServiceControllerCommandLineTool.Resources, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch
2013-07-02 18:27:25, Info CSI 000003d6 [SR] Cannot repair member file [l:20{10}]"sc.exe.mui" of Microsoft-Windows-ServiceControllerCommandLineTool.Resources, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch
2013-07-02 18:27:25, Info CSI 000003d7 [SR] This component was referenced by [l:266{133}]"Microsoft-Windows-WindowsFoundation-LanguagePack-Package~31bf3856ad364e35~amd64~en-US~6.1.7601.17514.Windows Foundation Language Pack"
2013-07-02 18:27:25, Info CSI 000003da [SR] Could not reproject corrupted file [ml:520{260},l:58{29}]"\??\C:\Windows\System32\en-US"\[l:20{10}]"sc.exe.mui"; source file in store is also corrupted

This, despite the fact that all English-language versions of sc.exe.mui on the system currently have the same MD5 signature as the "official" file extracted from the Microsoft install disk:

SystemLook 30.07.11 by jpshortstuff
Log created at 18:21 on 02/07/2013 by aas
Administrator - Elevation successful

========== filefind ==========

Searching for "sc.exe.mui"
C:\tmp\sc.exe.mui --a---- 61952 bytes [08:17 12/04/2011] [08:17 12/04/2011] 581815B20E73E25E183AB6D9FA755173
C:\Windows\System32\en-US\sc.exe.mui --a---- 61952 bytes [04:14 30/06/2013] [08:17 12/04/2011] 581815B20E73E25E183AB6D9FA755173
C:\Windows\System32\es-ES\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:59 13/07/2009] 32ED481B5F544E28688DD8327151EFC5
C:\Windows\SysWOW64\en-US\sc.exe.mui --a---- 61952 bytes [05:35 14/07/2009] [02:04 14/07/2009] 581815B20E73E25E183AB6D9FA755173
C:\Windows\SysWOW64\es-ES\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:40 13/07/2009] E05F4EB56379E702512989D332D2F2EC
C:\Windows\winsxs\amd64_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_en-us_61f244e28ffef5f0\sc.exe.mui --a---- 61952 bytes [05:35 14/07/2009] [08:17 12/04/2011] 581815B20E73E25E183AB6D9FA755173
C:\Windows\winsxs\amd64_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_es-es_61bda1c69025e795\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:59 13/07/2009] 32ED481B5F544E28688DD8327151EFC5
C:\Windows\winsxs\x86_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_en-us_05d3a95ed7a184ba\sc.exe.mui --a---- 61952 bytes [05:35 14/07/2009] [02:04 14/07/2009] 581815B20E73E25E183AB6D9FA755173
C:\Windows\winsxs\x86_microsoft-windows-s..dlinetool.resources_31bf3856ad364e35_6.1.7600.16385_es-es_059f0642d7c8765f\sc.exe.mui --a---- 69632 bytes [14:45 05/01/2011] [23:40 13/07/2009] E05F4EB56379E702512989D332D2F2EC

-= EOF =-

The Spanish versions are different, but that's not what SFC is complaining about.

The version in c:\tmp is the version extracted from the install disk.
On the install disk, the 32-bit version and the 64-bit version of the English sc.exe.mui files are the same (although the Spanish ones are different).

No, not at all. Completely up-to-date on all Microsoft updates.