Ragnar said:
Blocking the plugin or addon or whatever you want to call it, doesn't work anymore

.
yeah it just tries to redownload it. can use windows update to get stuff still though, usin a javascript line in the url bar when u get to the express/custom select screen.
hang on i'll try remember it. lol
replace the address on the afore mentioned page with
Code:
javascript:void(window.g_sDisableWGACheck='all')
and press Return. then pick the 'Express' option button.
Tested and found to work with both Sp1 and Sp2.