ISA Server? As in MS's firewall and internet security tool? This is a SQL Server forum, does your question have anything to do with SQL Server?
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass