Hello finding attaching files of 500k or bigger very slow in OWA 2003. We are publishing OWA using a ISA serever. The clients are on 100mb duplex link to the isa server. If we try this from a device on the internal network to ISA the speed of attaching is fine. For a 500k files it can take over a minute to attach the file. Any suggestions ideas on how to speed this up.