It's been for a 1,5 years so far but...

It's been a long time since you asked the question, but, me and my friend found this post just now. We are actually re-creating an old (2003) version of our I-net cafe software (that was meant for win98/me), and were searching the same thing... just firstly consider this:

You can simply put password at all accounts, so no one can enter safe mode without a permission. But this is...