Hi Shuffle,
So, it looks like you tried all 3 ways to disable Defender which I posted on the site and then some:
http://www.groovypost.com/howto/microso ... -or-vista/
http://www.groovypost.com/howto/microso ... m-startup/
http://www.groovypost.com/howto/microso ... oft-vista/
Hopefully we can figure out your problem. First, is this a personal PC or a Corporate PC? I ask because I'm wondering if there is a corporate policy / GPO in place which is not allowing you to configure your box. Next, you say you disabled the DEFENDER service (called Windows Defender when you look for it under services.msc). however it still is able to run? That's really crazy.
The next thing I would suggest is to just White List your 2 startup applications which defender is blocking. To do this, go ahead and enable Defender, then launch it.
Once Launched, Click Tools, Quarantined Items. If your apps are listed, click Restore and you should be good.
You can also Launch Software Explorer from the Tools menu and under "Startup Programs", Click "Showing for all users" then find your 2 apps that are not starting and enable them if they are disabled.
So, a few things to try and more info to post here
Thanks & keep me updated.
Which is looks like you have,