Windows 2012 Server - ITMS 7.5 SP1 HF3 - UNC Codebases Only

We are currently running ITMS 7.5 SP1 HF3 and have been upgrading our site 2003 servers to Server 2012 R2 in preparation to migrate to the new 7.6 ITMS version.  I noticed that on the "Package Server" tab, only "Codebases: UNC" is listed.  HTTP is not listed.  Is this truly the case?  How can I determine if only UNC codebases are being used and not HTTP?  Is this going to cause an issue if http is not being used?  Has anyone else experienced this and how can it be overcome on a 2012 R2 server?

Thanks!