Thanks David. You're right I shouldn't have deleted it but sent it to the virus chest.
It was 3am and I just wasn't thinking properly.
I have included my avast bootscan if you might be able to shed some light into it. It seems that a number of very old archival zip files were corrupted. I deleted them (same time as the regclean) because they were so old but again, should have sent them to the vault for further analysis.
If you can shed some light onto them I'd appreciate your advice, thank you and have a good weekend.
The archival hard drive is actually rather old - about 8 years old.
11/12/2011 08:49
Scan of all local drives
File C:\Program Files\iriver\iriver plus 3\PlugIns\mypodder.001|>mypodder\myPodder User Manual.pdf Error 42125 {ZIP archive is corrupted.}
File C:\Program Files\Valve\Steam\SteamApps\Targcomputers\team fortress 2\tf\cache\cp_castle3.bsp.bz20000|>{bzip} Error 42130 {BZIP2 archive is corrupted.}
File D:\2gig\xp\VX2S_XP_drivers.part1.rar|>Styles\Theme\uxpatcher.exe|>%WIN%\System32\dllcache\uxtheme.dll Error 42145 {Installer archive is corrupted.}
File D:\2gig\xp\VX2S_XP_drivers.part1.rar|>Styles\Theme\uxpatcher.exe|>%WIN%\System32\dllcache\uxtheme.dll Error 42145 {Installer archive is corrupted.}
File D:\2gig\xp\VX2S_XP_drivers.part1.rar|>Styles\Theme\uxpatcher.exe|>%WIN%\System32\dllcache\uxtheme.dll Error 42145 {Installer archive is corrupted.}
File D:\2gig\xp\VX2S_XP_drivers.part1.rar|>Styles\Theme\uxpatcher.exe|>%WIN%\System32\dllcache\uxtheme.dll Error 42145 {Installer archive is corrupted.}
File D:\2gig\xp\VX2S_XP_drivers.part1.rar|>Styles\Theme\uxpatcher.exe|>%WIN%\System32\dllcache\uxtheme.dll Error 42145 {Installer archive is corrupted.}
File D:\2gig\xp\VX2S_XP_drivers.part1.rar|>Styles\Theme\uxpatcher.exe|>%WIN%\..\VTPFiles\uxtheme.dll Error 42145 {Installer archive is corrupted.}
File R:\richie\jeremy\Transport Tycoon\1million-forth.zip|>Try01.ss1 Error 42125 {ZIP archive is corrupted.}
File R:\Mainuser\setupxv.exe|>RegClean.msi|>app.cab|>ApplicationExe is infected by Win32:PUP-gen [PUP], Deleted
Number of searched folders: 26949
Number of tested files: 1340837
Number of infected files: 1