Application popup: svchost.exe - Application Error : The instruction at

I think this is a problem with automatic updates MS-BIT and virus checkers being unable to unload or terminate svchost.exe correctly, i know you are using WSUS server but correct me if im wrong but they are based on the same code(or they are the same) as a stand alone XP machine's automatic updates, with the virus checker enabled and automatic updates on OCT patches where down loaded and i chose to install on shutdown to my shock! ok not shock more like expected disapointment i got svchost error whilist installing the first update, upon reboot i get as above error's, lucky for me i mirrored my hdd before i applied this update ( a practice i have gotten into since supporting the SP2 update and having had 50% of my companys customers expereincing serious problems upon reboot)
Then once all was working fine back to an identical OS as i had before i applied the updates, i disabled my virus scanner applied updates and guess what no problems, saying that this may be relevant to only non-WSUS as not all your machines do this as you stated and i know disabling virus scanners on you scale is not a wise move, all i hope is this points you in the right direction!

spelling is not the best but hey who said i perfect :P

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