Sorry Slipknot,
I wasn't at all clear. But I can't quite answer your question because I haven't actually used RMXP (because of the cost) and I haven't actually played it either. I just assumed it was similar to RM2K.
The parser I'm thinking of is ZORK...well, the guts of it would be very different from ZORK-like parsers but it would look like it and at first glance behave like it.
I don't have anything against multiple-choice and intend to use that option. It's just that I need more than that. I have two ideas--one technical and the other conceptual--and they both require a more open-ended interface with the player.
So why don't I just go all text parser? Because I really do like the involvement that good art--visual and musical--brings to a story.
I wish I could say more, but, you know...paranoia, poverty....the usual witches brew.
Hope that helps.
Corposant