I'm look for an online app to build a helpdesk q&a section. But one that would lead the customer through the process.
Do you have a mac or a pc?
If answer is "pc" the next question would be:
What version of windows do you have?
And so on....
So it would kinda go through a predefined q&a tree. I've seen this on the internet multiple times, but don't know what to search for really.