i know Mcafee Product pretty good
What Stucked there is MPRexe.exe (Or something like that)
if you installed the Mcafee 4.5 Install SP1 for it (ftp://support.co.il/public/Antivirus/datfiles/Vsc45sp1.zip)

After this it will work fine!

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It Works Better if you Plug it in, It Works far better if you Turn it ON!