Update: I found my answer in the Windows Vista Security Public Newsgroup:
There is no Anti-Virus Software that will Actively Monitor X64 Beta 2 at
this time, just FYI.
"Kevin John Panzke" <kevpan815@nospam.hotmail.com> wrote in message
news:%23waVa4rgGHA.1792@TK2MSFTNGP03.phx.gbl...
>I selected the Default Installation, just FYI.
>
> "Jane Colman" <jellybean@NOSPAMxjgarage.org> wrote in message
> news:eyiVrqrgGHA.1612@TK2MSFTNGP04.phx.gbl...
>> Silly question but......you did remember to add the providers during or
>> after setup? First time I installed Avast I forgot to add the providers
>> 
>>
>> --
>> Jane, not plain 64bit enabled
>> Batteries not included. Braincell on vacation.
>> "Kevin John Panzke" <kevpan815@nospam.hotmail.com> wrote in message
>> news:OHQx3UrgGHA.4864@TK2MSFTNGP05.phx.gbl...
>>> Here is a Screenshot form the other computer.
>>>
>>> "Kevin John Panzke" <kevpan815@nospam.hotmail.com> wrote in message
>>> news:%23VZpxFrgGHA.2208@TK2MSFTNGP05.phx.gbl...
>>>> See Screenshot.
>>>>
>>>> "Kevin John Panzke" <kevpan815@nospam.hotmail.com> wrote in message
>>>> news:uI9PwDrgGHA.5096@TK2MSFTNGP02.phx.gbl...
>>>>> Not even that will run on X64 Beta 2, just FYI.
>>>>>
>>>>> "Jane Colman" <jellybean@NOSPAMxjgarage.org> wrote in message
>>>>> news:ezoCnVqgGHA.5104@TK2MSFTNGP04.phx.gbl...
>>>>>>I never use the Internet Shield in Avast...it's just way too slow.
>>>>>>The
>>>>>>Standard Shield is the only provider that I run. It's that sensitive
>>>>>>that
>>>>>>it picks up anything untoward that ends up in temp folders whilst
>>>>>>browsing.
>>>>>>
>>>>>> --
>>>>>> Jane, not plain 64bit enabled
>>>>>> Batteries not included. Braincell on vacation.
>>>>>> "Kevin John Panzke" <kevpan815@nospam.hotmail.com> wrote in message
>>>>>> news:OQDIyqpgGHA.1272@TK2MSFTNGP03.phx.gbl...
>>>>>>> Avast 4.6 Server Edition and 4.7 Home Edition Internet Shield does
>>>>>>> NOT
>>>>>>> work on both Windows Vista Client X64 Beta 2 and Windows Server Code
>>>>>>> Name Long Horn X64 Beta 2.
>>>>>>>
>>>>>>> My Dell XPS 600 is running X64 Windows Vista Beta 2 with Avast 4.7
>>>>>>> Home
>>>>>>> Edition
>>>>>>>
>>>>>>> My Dell Dimension 8400 is running X64 Windows Server Code Name Long
>>>>>>> Horn
>>>>>>> Beta 2 with Avast 4.6 Server Edition.
>>>>>>>
>>>>>>> The Internet Shield is NOT working on either computer, just FYI.
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>>
>