hello Uncle, I m in very trouble because of some Web2SMS sites.My problem is that on our company there is only requirment of Proxy server on ISA thats why I stopped ISA firewall service, and we have seted our users on Proxy like 192.168.0.1 with port 8080. Most of the users are used Web2sms service for sending sms messages on Mobiles,I m giving you some sites i.e http://www.instasms.com/smschat/ and http://vega.vectracom.net/webchat/ After stopping firewall services these sites are not connecting for Web2sms chat and I have also checked that after opening ISA firewall these sites are working properly and connecting easily. Plz Uncle help me to solve this problem. Waiting for your response.