Just Passed OS but not so happy with my score (599) considering I have 3 MCP related to XP it's a poor score.
I found useful information on techexams , the forum is very good to get feed back from others, and it really helped me.
Exam was 90 minutes, 80 questions; I had finished the exam in 45 minutes.
Many questions related to booting files, seemed to me like a lot, questions on networking were very easy and basic. But there were many tricky questions with multiple correct answers, god I hate those questions.
Also there were 2 questions that came back 2 times

Many materials I found on internet was focusing too much on 98 GUI, there's no need to study that for OS exam