Network of 4 machines in bad shape

Hey all,

Thanks in advance for helping out.

I do computer support and have a client whose ISP actually shut down his connection because his PC's were generating so much traffic. Spam, DOS attacks, you name it, his machines had been comprimised and were being used to launch other attacks.

I pretty much eradicated everything...I think. I used BitDefender, McAfee, Trend-micro, Panda, Pitstop, Kaspersky, (all AV programs were run either as online scans or singly, never running concurrently), Spybot, Adaware, Defender...you name it, and I ran it.

A week later, his machine was acting up so I started working on it again, scanning for malware and viruses. Tons of stuff again, though not as bad as last time. Some of the things I found were really nasty...hidden files, hidden registry entries with null values...etc. When I say hidden files, I don't just mean right click, choose properties, and then choose hide...I mean these things were hiding from the Windows API, and only Rootkit revealer and ERD commander allowed me to eventually delete the files and registry entries. So I'm assuming I'm dealing with some pretty sophisticated stuff.

I'd like to make sure I've deleted everything from this one machine, and I've done all my homework, reading up on how to scan then submit files to these forums. Could anyone tell me if this machine is still infected with ANYTHING? I'm not attaching the bdscan since it found nothing and I was instructed to generate a total of 4 files, but can only upload 3. I've attached the really important ones.

Thanks again,

Pazure