Q. Are there any restrictions with vSphere Desktop?
A. vSphere Desktop can be used only to host a desktop virtualization environment or desktop management and monitoring tools. You can use vSphere Desktop for desktop management and monitoring tools in a VDI environment only. Desktop licenses covered by this provision, however, may not be managed by the same instance of vCenter which is being used to manage non-desktop OS virtual machines.
Q. I have spare vSphere Enterprise Plus licenses. Can I use them for desktop virtualization?
A. Yes, customers with spare vSphere licenses from past purchases can use it to host a VDI environment. Desktop licenses covered by this provision, however, may not be managed by the same instance of vCenter which is being used to manage non-desktop OS virtual machines.
- See more at: https://www.vmware.com/products/vsphere/vsphere-desktop#sthash.G4ECDqbc.dpuf
Ref:
VMware vSphere Desktop FAQs, vSphere Edition to Host Desktop Virtualization | United States
hope these answers help.