Vista - Not able to start Live messenger

Hello all,

Live messenger stopped working yesterday, after a reboot.

Log: (Dutch)
Kan activeringscontext voor 'C:\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe' niet maken. Fout in manifest of beleidsbestand 'C:\Windows\WinSxS\manifests\x86_policy.9.0.microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_60a5df56e60dc5df.manifest' op regel 0. Ongeldige XML-syntaxis.

(English)
Activation context generation failed for ":\Program Files (x86)\Windows Live\Messenger\msnmsgr.exe".Error in manifest or policy file 'C:\Windows\WinSxS\manifests\x86_policy.9.0.microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_60a5df56e60dc5df.manifest' on line 0. Invalid XML syntaxis.

Name: SideBySide
EventID: 59

I have tried to reinstall messenger, but that didn't work.
Also tried to run sfc /scannow and some couldn't be repaired.

2009-10-07 10:47:21, Info CSI 000004ae [SR] Verify complete
2009-10-07 10:47:21, Info CSI 000004af [SR] Verifying 100 (0x0000000000000064) components
2009-10-07 10:47:21, Info CSI 000004b0 [SR] Beginning Verify and Repair transaction
2009-10-07 10:47:22, Info CSI 000004b1 Manifest hash for component [ml:280{140},l:168{84}]"x86_policy.9.0.microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_60a5df56e60dc5df" does not match expected value.
Expected:{l:32 b:0da633647bcebabcb569917cb392b89d51ec4fa17abe11f5ae46a0b75a347491}
Found:{l:32 b:68d0a0e1b5126fadb69165f7662c1c2e5b4058fda3c004c4a18cc6ab2a371626}
2009-10-07 10:47:22, Info CSI 000004b2 [SR] Cannot verify component files for policy.9.0.Microsoft.VC90.CRT, Version = 9.0.21022.8, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:1fc8b3b9a1e18e3b}, Type = [l:24{12}]"win32-policy", TypeName neutral, PublicKey neutral, manifest may be damaged (TRUE)
2009-10-07 10:47:25, Info CSI 000004b3 Repair results created:
POQ 172 starts:

POQ 172 ends.

2009-10-07 10:47:26, Info CSI 000004bf Manifest hash for component [ml:280{140},l:168{84}]"x86_policy.9.0.microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_60a5df56e60dc5df" does not match expected value.
Expected:{l:32 b:0da633647bcebabcb569917cb392b89d51ec4fa17abe11f5ae46a0b75a347491}
Found:{l:32 b:68d0a0e1b5126fadb69165f7662c1c2e5b4058fda3c004c4a18cc6ab2a371626}
2009-10-07 10:47:26, Info CSI 000004c0 [SR] Cannot verify component files for policy.9.0.Microsoft.VC90.CRT, Version = 9.0.21022.8, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope neutral, PublicKeyToken = {l:8 b:1fc8b3b9a1e18e3b}, Type = [l:24{12}]"win32-policy", TypeName neutral, PublicKey neutral, manifest may be damaged (TRUE)
2009-10-07 10:47:26, Info CSI 000004c1 Hashes for file member \??\C:\Windows\System32\zh-TW\secpol.msc do not match actual file [l:20{10}]"secpol.msc" :
Found: {l:32 b:WFdVB/N9W6fO1gUQz3uoIY3yYYyuyjyCqvrCevfZzzg=} Expected: {l:32 b:LEvkz/JyGsrdim3/SDigqqLY+xWF+UCDWexEowsHW50=}

2009-10-07 10:47:27, Error CSI 000004d5 (F) Manifest hash for component [ml:280{140},l:168{84}]"x86_policy.9.0.microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_60a5df56e60dc5df" does not match expected value.
Expected:{l:32 b:0da633647bcebabcb569917cb392b89d51ec4fa17abe11f5ae46a0b75a347491}
Found:{l:32 b:68d0a0e1b5126fadb69165f7662c1c2e5b4058fda3c004c4a18cc6ab2a371626}[gle=0x80004005]
2009-10-07 10:47:27, Error CSI 000004d6@2009/10/7:08:47:27.071 (F) d:\longhorn\base\wcp\componentstore\storelayout.cpp(2336): Store corruption detected in function ComponentStore::CRawStoreLayout::FetchManifestContent expression: 0
FileHashMismatch on resource [111]"\winsxs\manifests\x86_policy.9.0.microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_60a5df56e60dc5df.manifest"[gle=0x80004005]

It appears that the manifest file is corrupt.

Help appreciated!