If the creators of mymc,ps2savebuilder and psv explorer put viruses inside their programs I have nothing to do about this.I'm using Avast and he's not saying anything about any of the files + there's no way I wouldn't know if I had viruses on my pc.
Those most likely are false reports.
Edit:Yes those are false reports,I download again the programs from their main sites but those anti virus programs are still reporting the same
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P4 2.8GHz,6600GT,1024 RAM