Updated on 27th October 2010.
I came across a challenge whilst working on a big XenApp deployment in a Novell environment. I needed to make changes to the Local Group Policy Object on all Terminal / Citrix servers. This was specifically required for implementation of a logoff script, as logoff scripts are not supported via Zen Polices in a Terminal Services environment.
As always, I wanted to automate it and found that there was a real lack of information about how this can be easily achieved. Anyway, I thought that modifying the Local Policy on all XenApp servers would be a pain, but it ended up being very simple indeed.
Admittedly, I could have just copied a new gpt.ini and scripts.ini into place, but then it would not have respected any previous changes and settings that had already been made to the gpt.ini. So this script checks existing configuration settings before making any changes to the gpt.ini file.
Enjoy!!