I tried to repair, it "refuses".
here is the log:
15.02.2010 21:47:55 general: Started: 15.02.2010, 21:47:55
15.02.2010 21:47:55 general: Running setup_ais-1a2 (418)
15.02.2010 21:47:55 system: Operating system: Windows 7 ver 6.1, build 7600, sp 0.0 x64
15.02.2010 21:47:55 system: Memory: 28% load. Phys:3004888/4189688K free, Page:4194303/4194303K free, Virt:2033652/2097024K free
15.02.2010 21:47:55 system: Computer WinName: USER-PC
15.02.2010 21:47:55 system: Windows Net User: USER-PC\USER
15.02.2010 21:47:55 general: Cmdline: /uninstwiz
15.02.2010 21:47:55 general: Old version: 1a2 (418)
15.02.2010 21:47:55 registry: Deleted registry: Software\Alwil Software\Avast\5.0\UpdateReady
15.02.2010 21:47:55 system: Using temp: C:\Users\AMG\AppData\Local\Temp\_asw_aisI.tm~a02344 (439490M free)
15.02.2010 21:47:55 general: SGW32AIS::CheckIfInstalled set m_bAlreadyInstalled to 1
15.02.2010 21:47:55 general: DldSrc set to inet
15.02.2010 21:47:55 internet: SYNCER: Agent=Syncer/5.00 (ais-418;p)
15.02.2010 21:47:55 system: Computer DnsName: USER-PC
15.02.2010 21:47:55 system: Computer Ip Addr: 192.168.2.102
15.02.2010 21:47:55 system: Installed in: C:\Program Files\Alwil Software\Avast5 (439490M free)
15.02.2010 21:47:55 internet: SYNCER: Type: use IE settings
15.02.2010 21:47:55 internet: SYNCER: Auth: another authentication, use WinInet
15.02.2010 21:47:55 package: Part prg_ais-1a2 is installed
15.02.2010 21:47:55 package: IsInstalledPartVpuOkay: C:\Program Files\Alwil Software\Avast5\Setup\part-vps_win32-10021400.vpx does not exist
15.02.2010 21:47:55 package: Part vps_win32-10021500 was guessed as installed
15.02.2010 21:47:55 package: Part setup_ais-1a2 is installed
15.02.2010 21:47:55 package: IsInstalledPartVpuOkay: C:\Program Files\Alwil Software\Avast5\Setup\part-jrog-34.vpx does not exist
15.02.2010 21:47:55 package: Part jrog-35 was guessed as installed
15.02.2010 21:47:55 general: LoadState: Edition=1
15.02.2010 21:47:55 general: Old version: 1a2 (418)
15.02.2010 21:47:55 file: SetExistingFilesBitmap: 280->99->99
15.02.2010 21:47:55 general: GUID: 4776faf4-a726-46b7-9e1e-8ca58151a0f2
15.02.2010 21:47:56 general: Server definition(s) loaded for 'main': 352 (maintenance:0)
15.02.2010 21:47:56 general: SelectCurrent: selected server 'Download961 AVAST5 Server' from 'main'
15.02.2010 21:47:56 internet: SYNCER: Type: use IE settings
15.02.2010 21:47:56 internet: SYNCER: Auth: another authentication, use WinInet
15.02.2010 21:48:04 general: progress thread start
15.02.2010 21:48:08 internet: Used server:
http://download961.avast.com/iavs5x15.02.2010 21:48:08 file: GetFileWithRetry: servers.def.vpx downloaded .
15.02.2010 21:48:08 file: servers.def.vpx not changed, 1265922226/0
15.02.2010 21:48:09 general: Server definition(s) loaded for 'main': 352 (maintenance:0)
15.02.2010 21:48:09 general: SelectCurrent: selected server 'Download808 AVAST5 Server' from 'main'
15.02.2010 21:48:09 internet: SYNCER: Type: use IE settings
15.02.2010 21:48:09 internet: SYNCER: Auth: another authentication, use WinInet
15.02.2010 21:48:09 internet: Used server:
http://download808.avast.com/iavs5x15.02.2010 21:48:09 file: GetFileWithRetry: prod-ais.vpx downloaded .
15.02.2010 21:48:09 file: prod-ais.vpx not changed, 1266235927/0
15.02.2010 21:48:09 package: LoadProductVpu: C:\Program Files\Alwil Software\Avast5\Setup\prod-ais.vpx
15.02.2010 21:48:09 package: ERROR: Unable to verify prod-ais.vpx, error 0x2000000B
15.02.2010 21:48:09 package: LoadAllDefs failed 0x20000011
15.02.2010 21:48:09 general: Err:The package is broken.
15.02.2010 21:48:27 general: Connection test
15.02.2010 21:48:27 internet: SYNCER: Agent=Syncer/5.00 (ais-418;p)
15.02.2010 21:48:27 internet: SYNCER: Type: use IE settings
15.02.2010 21:48:27 internet: SYNCER: Auth: another authentication, use WinInet
15.02.2010 21:48:27 general: progress thread start
15.02.2010 21:48:28 general: Server definition(s) loaded for 'main': 352 (maintenance:0)
15.02.2010 21:48:28 general: SelectCurrent: selected server 'Download856 AVAST5 Server' from 'main'
15.02.2010 21:48:28 internet: SYNCER: Type: use IE settings
15.02.2010 21:48:28 internet: SYNCER: Auth: another authentication, use WinInet
15.02.2010 21:48:29 general: InvalidateCurrent: invalidated server 'Download856 AVAST5 Server' from 'main'
15.02.2010 21:48:29 general: SelectCurrent: selected server 'Download951 AVAST5 Server' from 'main'
15.02.2010 21:48:29 internet: SYNCER: Type: use IE settings
15.02.2010 21:48:29 internet: SYNCER: Auth: another authentication, use WinInet
15.02.2010 21:48:59 general: Operation set to INST_OP_REPAIR
15.02.2010 21:48:59 general: Entered SetupProcessAIS::Do( INST_OP_REPAIR )
15.02.2010 21:48:59 general: Entered SetupProcessWin32Avast::Do( INST_OP_REPAIR )
15.02.2010 21:48:59 general: Entered SetupProcessWin32::Do( INST_OP_REPAIR )
15.02.2010 21:48:59 general: Entered SetupProcess::Do( INST_OP_REPAIR )
15.02.2010 21:48:59 general: Entered SetupProcessAIS::Do( INST_OP_UPDATE_INSTALL_PACKAGES )
15.02.2010 21:48:59 general: Entered SetupProcessWin32Avast::Do( INST_OP_UPDATE_INSTALL_PACKAGES )
15.02.2010 21:48:59 general: Entering:UpdateInstallPackages
15.02.2010 21:48:59 general: progress thread start
15.02.2010 21:48:59 package: LoadProductVpu: C:\Program Files\Alwil Software\Avast5\Setup\prod-ais.vpx
15.02.2010 21:48:59 package: ERROR: Unable to verify prod-ais.vpx, error 0x2000000B
15.02.2010 21:48:59 package: Error processing packages. 0x20000011