Hallo, i use the ISA-Server as Reverse-Proxy. i have to map a URL like "http://www.domain.com/directory1"; to an internal webserver "http://internal.domain.com/anotherdirecotry/directory1";. with Apache as reverseproxy it is no problem. Can i only solve this problem with ISA by using ISAPI? Have anyone written such an ISAPI? can anyone help me? Thanks, Torsten