It has gone!
MBAM must have sorted it out, after a reboot today there is no sign.
I attach the report for future reference if the problem occurs for someone else.
Here is the report:
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Memory Processes Infected: 0
Memory Modules Infected: 1
Registry Keys Infected: 35
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1
Memory Processes Infected:
(No malicious items detected)
Memory Modules Infected:
C:\Program Files\Windows Live\Messenger\msimg32.dll (Adware.MyWebSearch) -> Delete on reboot.
Registry Keys Infected:
HKEY_CLASSES_ROOT\CLSID\{147a976f-eee1-4377-8ea7-4716e4cdd239} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{1d4db7d1-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{1d4db7d3-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{2e9937fc-cf2f-4f56-af54-5a6a3dd375cc} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{741de825-a6f0-4497-9aa6-8023cf9b0fff} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{cf54be1c-9359-4395-8533-1657cf209cfe} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{1d4db7d0-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{d518921a-4a03-425e-9873-b9a71756821e} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\funwebproductsinstaller.start (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\funwebproductsinstaller.start.1 (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{00a6faf1-072e-44cf-8957-5838f569a31d} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{07b18ea1-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{07b18ea9-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{07b18eab-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{3dc201fb-e9c9-499c-a11f-23c360d7c3f8} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Settings\{9ff05104-b030-46fc-94b8-81276e4e27df} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{00a6faf1-072e-44cf-8957-5838f569a31d} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{07b18ea1-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{07b18ea9-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{07b18eab-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{3dc201fb-e9c9-499c-a11f-23c360d7c3f8} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Ext\Stats\{9ff05104-b030-46fc-94b8-81276e4e27df} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Smart-Shopper (Adware.SmartShopper) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{59c7fc09-1c83-4648-b3e6-003d2bbc7481} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{68af847f-6e91-45dd-9b68-d6a12c30e5d7} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{9170b96c-28d4-4626-8358-27e6caeef907} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{d1a71fa0-ff48-48dd-9b6d-7a13a3e42127} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{ddb1968e-ead6-40fd-8dae-ff14757f60c7} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{f138d901-86f0-4383-99b6-9cdd406036da} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\RunDll32Policy\f3ScrCtr.dll (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Multimedia\WMPlayer\Sc hemes\f3pss (Adware.MyWebSearch) -> Quarantined and deleted successfully.
Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\ Run\hjacefeq (Trojan.Agent.U) -> Quarantined and deleted successfully.
Registry Data Items Infected:
(No malicious items detected)
Folders Infected:
(No malicious items detected)
Files Infected:
C:\Program Files\Windows Live\Messenger\msimg32.dll (Adware.MyWebSearch) -> Delete on reboot.