How to block Windows Live Messenger traffic by using ISA Server 2006

I tried to block MSN using the link http://support.microsoft.com/kb/925120 for ISA 2006 and when I finished my Internet access was block completely, I do not know what I did wrong, I am not sure where it says....3) In the Signature dialog box, enter a name for the signature in the Name field. I do not know if the name has to be some specific name or any name.

Thank you very much in advance
ITIssueAsked:
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Mr_zConnect With a Mentor Commented:
Hi there! i give you the site i used to block the msn
http://social.technet.microsoft.com/Forums/pt-BR/isa2004pt/thread/a95022a9-c176-40d2-9604-c391ea42204e

I hope it help i used groups to allow and block whit a allow rule, but if you are blocking by name you need to add diferent version os the msn and do not block the internet.
 
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Keith AlabasterEnterprise ArchitectCommented:
Any name - it is a name that you want to recognise the action by.
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ITIssueAuthor Commented:
thank you for your answer. Do you have idea why it stopped the whole traffic, I can't get internet (HTTP and HTTPS) everything was down, 3 minutes after that I disable the rule and everything was back. I do not know if there is something else to know

Thank you again
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Keith AlabasterEnterprise ArchitectCommented:
To be frank - and simplistic - you did something wrong but without knowing exactly what you typed - and where - it is impossible to guess.
Immediate thought though would be that you managed to exclude all content type entries rather than just the individual signature or agent name that you meant to block.

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ITIssueAuthor Commented:
thank you to be frank. Do you have some link or document that I can follow? Do I have to down the rule that I created? maybe the problem was that the new rule was first so it applied over the others.

thank you
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ITIssueAuthor Commented:
I followed the steps on the link and I could block partially MSN
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