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Blocking MSN, Yahoo Messenger using Group Policy

Hello Experts

I want to be able to block access to MSN & yahoo messengers using a group policy on domain to avoid clients accessing it.
I also wanna block web access to yahoo web using ISA Server 2000.

Any suggestions ?

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rowansmith

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Mohammed Hamada

ASKER

I have done the first 3 steps but instead of AIM I typed YahooMessenger Disabled - 1.
Restarted firewall...!
Now do I still have to configure the .ini file on each machine to block yahoo ? if so how do I do that?

hau_it

From group policy you can block the executable of each application msnmessenger.exe etc.
Always have in mind that users may be able to access msn either from web or through web proxy.
isaserver.org has a list of web proxy sites that you can appy to the ISA.

Dimitris

Mohammed Hamada

ASKER

The problem is that I don't want to join most of the work group pcs to the domain... I have like 10 joined to the domain, but coz we recently have problem with the server I would prefer to let them out of the domain.

I have successfully blocked yahoo through the ISA server 2000, however some clients are able to log on but yahoo is slow on these computers...!

Mohammed Hamada

ASKER

Now yahoo clients can use the option Firewall with no proxies to connect to yahoo !!!
Is there away to avoid this 2?

Mohammed Hamada

ASKER

Thanks, the client configuration trick worked perfect ..! I have blocked all access to yahoo messenger.