Since you're unable to get the PC to boot, try this. (Its free

)
http://www.europe.f-secure.com/download ... ools.shtml
Grab the file
ftp://ftp.f-secure.com/anti-virus/free/fp-312d.zip
Extract
F-PROT.EXE The main program (DOS version).
SIGN.DEF DOS/Windows virus search/disinfection data.
SIGN2.DEF Trojan and Java/Script/BAT/Other virus search data.
MACRO.DEF Word/Excel virus search/disinfection data.
NOMACRO.DEF An "empty" version of MACRO.DEF.
ENGLISH.TX0 An English message file.
*.TXT Some documentation files, including this one.
*.ASC PGP signature files.
to a floppy disk.
Boot the infected computer into DOS (Using a Boot Disk
http://www.bootdisk.com if you dont have one).
At the command prompt insert the f-prot floppy and type a:\F-PROT.EXE