Blocking MSN Messenger from ISA 2000 Server – Part I

Yesterday I was trying to block MSN Messenger from ISA 2000 Server in Cached mode.  I have done that before on ISA 2000 Server in Integrated mode using MSNIM.vbs script available from ISA Server Tools Repository – (Thanks Jim for excellent tools site).

When I ran the script, it gives the following message;

Creating (or updating) the FW App Settings
Creating (or updating) the protocol definition
Creating (or updating) the protocol rule
Error 0x80040361; At least one protocol must be specified. – while trying to set ISA up for MSN Messenger

I quickly wrote to ISA Server guru Jim Harrison and he replied – “ISA 2000 can’t block MSN Messenger using MSNIM.vbs script in cache mode”.

In Part -II we will see a cheeky method to block MSN Messenger from ISA 2000 Server.


Instant Messaging with ISA Server

Common Application Signatures

ISA Server Tools Repository

Microsoft ISA Server Firewall and Cache resource site

Scripts for ISA Server

Dr. Tom Shinder’s ISA Firewall Space

ISA Server Blogs

ISA Server Community (MVP’s)

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