Software Restriction Policies are a way of limiting what can be executed by a user. For more information see this page on technet. Basically, they allow you to limit what a user can run (No games etc). To create a basic Software restriction policy just follow the below guide.

This post will try and walk you through deploying J2RE using Group Policy Software Deployment.Firstly, download “Java Runtime Environment (JRE) 6″ from here, you’ll need the offline installer for this. Once downloaded, run it and an MSI will be extracted to your AppData folder, you can find it here:
%HOMEPATH%\Local Settings\Application Data\{3248F0A6-6813-11D6-A77B-00B0D0150060}
You then need to create [...]

Since moving our network over to Office 2007 is a lot of work, and requires a fair ammount of user retraining I decided it best to just deploy the File Format Converters Microsoft realeased so that users with Office 2003 can open 2007 format documents.
For reasoning unknown to me, Microsoft released them as an exe [...]