Ummm ... I don't understand the question.
This entire thread is about running DSM in ESXi. By re-reading the thread, you'll find all the information you need to run DSM on ESXi. You need a different set of installation files for ESXi than what is needed for VMWare Workstation or VirtualBox or Hyper-V or for a physical machine (HP N40, etc.)
For ESXi, read (and follow exactly) the "Idiot's Guide" to install on ESXi.
Idiot's Guide to DSM 4.2 and ESXi 5.1
For other VMWare or VirtualBox installations, check other forum threads. The best one would probably be "XPEnology for dummies LINK Update 02/02/2013".
XPEnology for dummies LINK Update 02/02/2013
It is because I have finished set up DSM 3211 on VM Workstation 8 under Windows 2008 and wanna export this VM to ESXi 5.1. Am I just click to export in VM Workstation or fully install from the beginning under ESXi?