Won't install - fails the "equivalent protection" test

Hi Guys,

We're converting from Trend Micro to Sphos.  Really want to use the remove third party software because we don't want to have to go to each computer to remove the existing anti virus software.

However the Sophos installation won't allow us to do that because we fail the "equivalent protection" test (i.e. we're not installing the firewall product and it wants us to).

Is there a way to override or turn off the check and do the removal anyway?

thanks

H