WFM IIS Integration?

Hello,
We are deploying WFM 8.1.2 however within the administrators guide there is no mention of an IIS integration with tomcat anymore.

Is this no longer required or recommended?

Whilst using WFM 761 this was part of our deployment so wondering why it is not documented anymore- or is now customer choice but not needed?

thanks.

Personally, I have never used IIS with Tomcat within WFM solution. So, I think that it is not necessary yet. I do not see any advantages,except solution where you need make load-balancing between more than one Tomcat with WFM web.