How to Use IIS to Acquire SSL Certificates for XenServer
This article describes how to create a certificate in IIS and transfer it to a XenServer host.
Microsoft IIS server
Internal Microsoft Certificate Authority
To enable trusted SSL communication for XenServer management through XenCenter, XenDesktop, or any other product, a trusted certificate is required on the XenServer host.
Read the article here, and see how you configure the IIS to Acquire SSL certificates for XenServer