Hi friends Just a small doubt.. My ISA is working as a caching proxy server. I installed it to replace MS Proxy 2.0 which used to terminate unexpectedly once in a day. After 5 days of continuous operation, the ISA proxy service terminated once unexpectedly. Though this is the first time it happened, I do not want to take a chance. I am just wondering if I need to take care of any specific option/settings to prevent further service terminations. I have set the cache size to 512 MB.The ISA Server is ISA2000 with SP1. Yet to update the SP2. Please suggest Arun This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.