ESXi 5.0 - HT CPU - Allocate 2 HT cores as a single cpu

Apology if any of my termonolgy is incorrect, need some advice on this.

I plan to implement SAP BI on ESXi 5. Build 768111 on Windows 2008 R2 and due to license I am restricted to one CPU only.

I have spoken to our legal team and SAP have confirmed if I can allocate 2 HT cores (if that is the correct term) and show it as a single CPU within the operating system I am not breaking any license agreement.

However in VSphere client when I set Number of Virtual Sockets = 2 and Number of Cores Per Socket = 1 - I see two vCPU - I may be mistaken on my understanding, but I assumed this would show as a single vCPU

so how can I set the vCPU to be single - yet use 2 HT per socket.