IIS7 programmatic configuration challenge

Hi,

I'm thinking about becoming a customer but have a challenge that hopefully can get answered easily.

I need to allow users to my site the option of changing their URL slugs from:

www.domain.com/users/2038238 to
www.domain.com/users/johnsmith

with the ability to also verify that a particular URL isn't already in-use.

So far, the only way that seems possible is via WMI with either VBScript or POSH.

Does DASP have any mechanisms that allow for this to occur? Btw, I'd also like to know whether or not a VDir would be more appropriate in this instance rather than a URL Re-Write.

Thanks.