@arakish The CC3 Viewer installs and runs fine on Windows 7 and Vista systems. That's not to say you don't have a technical support issue, but it's not a general Vista or Windows 7 related issue. I ran the installation as Administrator, and installed in its default location, that is in Program Files; without "contravening security features"

It is not designed, nor can it, extract symbols from drawings. If those symbols catalogs are made with PNGs rather than native CC3 entities, you'll find them stored as PNG files in a subfolder somewhere - we don't embed PNGs.