IIS Stopped working properly.

Hello,

I have this problem on a SBS 2003 Premium server, the ISS for no reason stopped working properly. The only service managed by him that is working is the FTP. All other things are stopped, the websites, pools, and so on.
Thing is i can't get any clue on the messages has in event viewer i don't get any error, i only get a popup message sayin the service didn't started on a timely fashion when i try to start it. I've restarted the machine and i got the same problem.
Where can i start looking? Is there any tool or place where i can get a detailed log of what is happening?

Thank you.
.