The steps for using LUP are pretty straight forward. However, for admins who are new to it, having a step-by-step guide to refer to can be reassuring.
This guide assumes that you are already familiar with WSUS in general, and are interested in learning how to create and deploy what MS refers to as Local Updates. Microsoft’s MSDN pages on the subject are a little thin on specifics.
The sections in this guide that talk about how to customize updates use ORCA. ORCA is not a user-friendly application. However, it is Microsoft’s tool for working with MSI files, and it’s free. If you do not intend to customize updates, or you intend to use another program for editing the installer files, you don't need to learn about ORCA.
Here are the general steps I would recommend:
These steps are described in more detail as you proceed through the guide. It may be worth emphasizing the bit about testing. Whenever you define a new update, you should test it on a subset of machines before rolling out to your entire organization to ensure that business critical applications still work correctly.
Consult the User's Guide for information on using the wiki software.