I am trying to add software to my unattended scripted install.
You can add installs to run during the post tasks or add a line to run once area to install after reboot during post install. If you have a k1000 also, install the cleint as a post task and have the k1000 push MI's run after the k2000 is done with it's part, less load on the k2000 that way.
Research USMT scanstate and loadstate. Download the Windows AIK toolkit. Also research Windows System Image Manager and Diskpart tools.
What are you currently using to build your unattended installs?Microsoft has MDT 2012 and/or SCCM 2012 that can assist with scripted deployments.I currently use SCCM 2012. I use a task sequence to deploy updates after the Windows image has been applied. After the updates step, I have a cluster of 'steps' that install the software I selected when I built the task sequence. MDT also supports the use of task seqences to perform these actions.