Post Power On Script Question

In my vSphere 5 U2 environment I am running SRM 5.02 with SAN replication.

My question is about post power on scripting.  Since my VM's have to have their IP Addresses changed, I find that I need to manually log in to some systems and run an ipconfig /registerdns.

I was wondering if I can just put that in as a post power on script by simply putting in ipconfig /registerdns right in the the "Content" field of the post power on step.

Thanks.