Hello,
Currently most of the organization are using Office 2013 and QC 11.0 or 11.5. Apart from that those companies who are using Windows are using OS 7 and IE 10 or 11. Some of them are also planning to upgrade to 8.1
Hence i would request HP to come up with solution for compatibility of Office 2013 with QC 11 as soon as possible.
Thanks,
Rajesh