Особенно вот это понравилось:
I went to the Host Security product team and asked them if they got to hook the kernel - they did not. They said that the x64 version of their product for Windows Vista would use the defined interfaces, just like any 3rd-party security product. They said they'd have to re-implement certain aspects from the way things were previously done.
Next, I went to the Windows Firewall product team and asked them if they got to hook the kernel. The said no. A new Windows Filtering Platform (aka defined interfaces) had been introduced for Vista, which they would be using just like everyone else.
Имхо, Symantec это что-то вроде доктора-коновала... Лезет во внутренние органы грязными руками, что применимо к windows, понижает быстродействие системы на процентов так 70...