WPAD is apparently a host that is responsible for automatic configuration of
the browser. I have machines that are making DNS queries for a WPAD
server, but they are doing this even when they are not logged in. Can
someone explain to me what service(s) would be searching for a WPAD server
on a Windows 2003 computer that is not logged in?

--
Will

Will

Windows 2003 has a services named "WinHTTP Automatic Proxy Discovery", or
something like that, that runs a proxy discover periodically.

WPAD = Web Proxy Automatic Discovery, used to automatically configures Proxy
in Internet Browser like Interner Explorer or Firefox.

You can normally disable this service in Windows 2003.

Hope this s you

Oscar Soto Casali
MVP Directory Services

"Will" <westes-usc@noemail.nospam> escribió en el mensaje de
noticias:3uWdnRf1XZUDx93YnZ2dnUVZ_oidnZ2d@giganews .com...
> WPAD is apparently a host that is responsible for automatic configuration
> of
> the browser. I have machines that are making DNS queries for a WPAD
> server, but they are doing this even when they are not logged in. Can
> someone explain to me what service(s) would be searching for a WPAD server
> on a Windows 2003 computer that is not logged in?
>
> --
> Will
>
>

"OscarSotoCL" <oscar.soto@activetrainer.cl> wrote in message
news:#UOgpfS#GHA.3952@TK2MSFTNGP03.phx.gbl...
> Windows 2003 has a services named "WinHTTP Automatic Proxy Discovery", or
> something like that, that runs a proxy discover periodically.

If the WinHTTP Auto Proxy Discover is set to manual, are you saying W2K3
will periodically start it?

--
Will

Yes, it does.

But, you can disable WinHTTP auto proxy discover. When this services is
running the server looks for a proxy configuration in order to inform other
applications what's the proxy configuration. If you disable this service
each application it's responsible to find the proxy configuration when the
applications runs. If you are not using proxy automatic configuration in
your network, then you can disable this function in the server
(Services.msc) and in the required applications, like Internet Explorer.

In this way there will be no more WPAD packets in your LAN.

Hope this s you

Oscar Soto Casali
MVP Directory Services


"Will" <westes-usc@noemail.nospam> escribió en el mensaje de
noticias:MKSdnXlX8r8ko9zYnZ2dnUVZ_ridnZ2d@giganews .com...
> "OscarSotoCL" <oscar.soto@activetrainer.cl> wrote in message
> news:#UOgpfS#GHA.3952@TK2MSFTNGP03.phx.gbl...
>> Windows 2003 has a services named "WinHTTP Automatic Proxy Discovery", or
>> something like that, that runs a proxy discover periodically.
>
> If the WinHTTP Auto Proxy Discover is set to manual, are you saying W2K3
> will periodically start it?
>
> --
> Will
>
>

"OscarSotoCL" <oscar.soto@activetrainer.cl> wrote in message
news:e3DnGip#GHA.4800@TK2MSFTNGP05.phx.gbl...
> But, you can disable WinHTTP auto proxy discover. When this services is
> running the server looks for a proxy configuration in order to inform
other
> applications what's the proxy configuration. If you disable this service
> each application it's responsible to find the proxy configuration when the
> applications runs. If you are not using proxy automatic configuration in
> your network, then you can disable this function in the server
> (Services.msc) and in the required applications, like Internet Explorer.
>
> In this way there will be no more WPAD packets in your LAN.

Thanks very much. I just disabled it for the network from group policy.

--
Will

"OscarSotoCL" <oscar.soto@activetrainer.cl> wrote in message
news:e3DnGip#GHA.4800@TK2MSFTNGP05.phx.gbl...
> But, you can disable WinHTTP auto proxy discover. When this services is
> running the server looks for a proxy configuration in order to inform
other
> applications what's the proxy configuration. If you disable this service
> each application it's responsible to find the proxy configuration when the
> applications runs. If you are not using proxy automatic configuration in
> your network, then you can disable this function in the server
> (Services.msc) and in the required applications, like Internet Explorer.
>
> In this way there will be no more WPAD packets in your LAN.

What service should we disable under Windows 2000 to prevent autodiscovery
inquiries to WPAD?

--
Will

"OscarSotoCL" <oscar.soto@activetrainer.cl> wrote in message
news:e3DnGip#GHA.4800@TK2MSFTNGP05.phx.gbl...
> But, you can disable WinHTTP auto proxy discover. When this services is
> running the server looks for a proxy configuration in order to inform
other
> applications what's the proxy configuration. If you disable this service
> each application it's responsible to find the proxy configuration when the
> applications runs. If you are not using proxy automatic configuration in
> your network, then you can disable this function in the server
> (Services.msc) and in the required applications, like Internet Explorer.
>
> In this way there will be no more WPAD packets in your LAN.

I disabled the Winhttp Auto Proxy Discovery service on Windows 2003 servers,
and they still make DNS queries for WPAD. Any ideas on what other
service(s) might be doing that?

--
Will