You can use Autoruns from http://technet.microsoft.com/en-us/sysinternals/default.aspx

>Hi,
>
>I am having a frustrating experience trying to disable a couple of services that auto start by Windows. These are some VPN services.
>
>Here is how I disable them:
>
>1. I run MSCONFIG, go to Services tab and uncheck these 2 VPN services
>2. Click on Apply, OK, Reboot.
>
>When the PC reboots I get the message:
>
>"You have used the System Configuration Utility to make changes to the Windows starts.
>The System Configuration Utility is currently in Diagnostic or Selective Start up mode.
>Choose the Normal Startup mode on the General tab to start Windows normally and undo
>the changes you made using the System Configuration Utility."
>
>Then when I click on Ok, I get the MSCONFIG again with the services I unchecked being checked again.
>
>How do I apply the changes in MSCONFIG (unchecking certain services) and make sure the changes are saved and not reverted on the reboot?
>
>TIA.