I’m also wondering if a removal of IIS and reinstall would be of help. On another system elsewhere, I had a FMServer 10 install break, and the only way to get the web publishing working again, was to remove IIS, reinstal IIS, and reinstall FMS. A straight reinstall of FMS didn’t work, had to reinstall IIS.
Thanks for the pointers, I’ll google the error and see what comes up.