PSE 11 win is an msi installer unlike that of Ps CS6.
Also, before I can help with you want to do, I'd please like to know what you mean by "volume serialize elements 11".
Do you mean that you want to serialize pse11 with a volume serial key. If yes, it'll be the same as serializing your application with a retail key or any other type of a serial number.
If you mean to serialize your app installations on multiple machines, you could again use the same serial number on all the machines. Adobe id/serial number association doens't work on pse11 as it does on Ps CS6 as they're on different versions of provisioning/licensing.