Yes i do install the SDK Certs cab before i install any custom taskbar.Sometimes i even install Ryan Moguls security policy lifter cab to,but its not necessary.Only the SDKcerts cab is necessary to install to get the taskbar. Sorry if i forgot to mention the necessary install of the sdkcerts cab.If that still doesnt work for u in one of MightyMikes threads he has a post that has a cab that is supposed to make custom taskbars function properly.But i have never hadbto use it. I just install the sdk certs cab and then i install the custom taskbar of my choice,from one of the taskbars in my previous post, and then just finish the installation with a soft reset.It works for me everytime.Hope this helps.