Note: if you prefer, you can extract them from the ISO's you have just downloaded.
For info: the two mpam-fe exe files are self-extracting files which contain the virus definition database.
3. Add the following two entries to your menu.lst
title Microsoft AV Sweeper for 32-bit Windows\nRun this to disinfect a 32-bit Windows system
find --set-root /MSSS_Media32.iso
map /MSSS_Media32.iso (0xff) || map --mem /MSSS_Media32.iso (0xff)
title Microsoft AV Sweeper for 64-bit Windows\nRun this to disinfect a 64-bit Windows system
find --set-root /MSSS_Media64.iso
map /MSSS_Media64.iso (0xff) || map --mem /MSSS_Media64.iso (0xff)
4. You should now be good to go (provided you have a grub4dos bootable drive already)! The essential files for grub4dos booting are:
Updating the virus definitions
Once you boot and if the WinPE has the necessary drivers, you can check the website for the latest drivers, but this will only update the definitions held on the ramdrive and will not update the definitions file on the USB drive.
If you use the MS utility to make a bootable USB drive rather than an ISO file, it will re-format your USB drive the first time, but when you run the application again next week, it will just update the USB stick. If you only have the ISO files however, it will not update the USB drive and will offer you the choice to format the USB drive again or Cancel (no 'just update definitions' option!).
Tip: Save a url shortcut of the MSSE definitions page onto your USB drive by dragging and dropping the icon in your browser to the USB drive. Then you can quickly update the USB drive by clicking on the link on your USB drive (whilst running under Windows, not once booted from the USB drive!).