- Open ISA Management Console.
- Select your Array serveràFirewall Policy.
- Select your Web Access Rule, Right click on that.
- Configure HTTP Policy.
- To Block Download with Extension.
- Click on Extension TABàAddàExtension (Example to block exe- .exe) as per below screen shots.
- To Block Chat application and Attachment upload.
- Click on Signatures TABàAdd
- See the below screen shots.
Examples
| Application | Location | HTTP header | Signature |
| MSN Messenger | Request headers | User-Agent: | MSN Messenger |
| Windows Messenger | Request headers | User-Agent: | MSMSGS |
| Netscape 7 | Request headers | User-Agent: | Netscape/7 |
| Netscape 6 | Request headers | User-Agent: | Netscape/6 |
| AOL Messenger (and all Gecko browsers) | Request headers | User-Agent: | Gecko/ |
| Yahoo Messenger | Request headers | Host | msg.yahoo.com |
| Kazaa | Request headers | P2P-Agent | Kazaa |
| Kazaaclient: | |||
| Kazaa | Request headers | User-Agent: | KazaaClient |
| Kazaa | Request headers | X-Kazaa-Network: | KaZaA |
| Gnutella | Request headers | User-Agent: | Gnutella |
| Gnucleus | |||
| Edonkey | Request headers | User-Agent: | e2dk |
| Internet Explorer 6.0 | Request headers | User-Agent: | MSIE 6.0 |
| Morpheus | Response header | Server | Morpheus |
| Bearshare | Response header | Server | Bearshare |
| BitTorrent | Request headers | User-Agent: | BitTorrent |
| SOAP over HTTP | Request headers | User-Agent: | SOAPAction |
| Response headers | |||
| Kazaa | Headers | Request Header | X-Kazaa-Username: X-Kazaa-IP: X-Kazaa-SupernodeIP: |
| BitTorrent | Extensions | None | torrent |
| Many peer-to-peer clients | Headers | Request Header | P2P-Agent |
| Attachment upload Block | Response header | Content-Type | multipart/form-data |
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