Ok, This is my first time trying this. I am trying to create a unattended XP SP1a install with all the hotfixes installed. I am in the process of and downloading the patches and adding them to the svcpack.inf. Ok this is were I am stuck I noticed some hotfixes to do not have a catalog file *.cat, such as Q828035 or Q828741. How do you install these, do you just put them in the [setupHotfixesToRun] to section and not worry about the [ProductCatalogsToInstall] ?