Unable to download files with http profile assigned to VS

I am currently using a irule like to switch the content to the correct server. Could I simply disable the http profile in the irule for all URLS?

Any pointers on what I would need to enter to disable the http profile. The sites seem to work without the profile on the VS.

when HTTP_REQUEST { switch -glob [string tolower [HTTP::uri]] { "/xxxxx*" { pool LegacyIIS } default { pool Main-WS-Pool } }

Thanks Matt