My anti virus programme has found Adware.lefeats

My anti virus programme has found Adware.lefeats & was unable to delete them.

The source is in 11 files for example:
C:\Documents&Settings\chris\Applocation Data\winbq\netfw32.dll,
C:\Documents&Settings\chris\Applocation Data\winbq\winbq.dll, C:\Documents&Settings\laura\Applocation Data\winbq\ntzb32.dll,
C:\Documents&Settings\carole\Applocation Data\iekw\iekw.dll

It suggested I delete them via Windows Explorer, if I do this will I get other problems.

  Fruit Bat /\0/\ 20:08 01 Jul 04

1.Try to delete them then see if they reappear.

2.If they do then switch off system restore delete files switch restore back on and set a new restore point.

3. if that doesn't work then boot into safe mode and delete them from there.

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