Vista and Server 2008 both have startup issues with SCControl.exe (the taskbar icon executable that provides service control and so on). This results in a message, “Windows has Blocked a Startup Program….”
We have described how to alter the configuration to better work in the UAC environment in a document available at:
http://flynetsoftware.com/VistaStartupFix.pdf
This document includes instructions on adding a Task Scheduler entry to start SCControl instead of it running from a registry entry.