Question mark as part of uri segment gives disallowed error

[eluser]Sarre[/eluser]
Hi,

Is there a way to make it possible to work with question marks as part of uri segments?
I have query string disabled as default, and I tried adding the '?' to the allowed characters in the config file (as \?).
But when I do something like this:

http://localhost/Class/Function/What-is-this?

And then output it, it will only show 'What-is-this', while I need it to display 'What-is-this?'...
The ? disappears
I tried encoding it in many different ways, but haven't found the answer yet

Any ideas?

Thanks!

[eluser]Michael Wales[/eluser]
I don't mean to doubt your design decision (and sorry, I can't answer your question at this time - will do some looking though) - but why do you want to include the question mark?

[eluser]Sarre[/eluser]
To be honest - laziness

I'm rebuilding a site in CI that has those kinds of links already stored in a database.
So I figured, as query strings are disabled, I could simply continue using the ?'s in my uri's.
But it seems to be more difficult than I thought