Hello All! Recently, I posted a message regarding content filtering with file extensions that did not work. After some research, I found the solution to the fact that ISA would not filter on file extension. I found the KB article 813864 titled "FIX: Site and content rules do not filter based on file name extensions" (http://support.microsoft.com/default.aspx?scid=kb;en-us;813864) I got the fix from Microsoft (it is not available to download since it has not be fully tested), applied the solution and... Bingo! Everything is now working as it should (for this matter anyway!!!). I can block access to specific file extensions per user. Hope this can help others in a similar situation. Fred ______________________________ Frederic Giroux LAN Administrator CyberCap fgiroux@xxxxxxxxxxxxxx http://www.cybercap.qc.ca 33 Prince St. Suite 301 Montreal, Qc H3C 2M7 (514) 861-7700 ext. 303 Fax : (514) 861-7700