I downloaded the Cassini source from here:
http://blogs.msdn.com/dm.../2006/03/09/548131.aspx
just to see how hard it would be to implement this feature. To my amazement, it worked right off the bat!
A simple test file, getdoc.aspx:
PathInfo=<%=Request.PathInfo%>
when accessed as /myapp/getdoc.aspx/mydir/myfile, produces: PathInfo=/mydir/myfile.
AFAIK, UltiDev Cassini is based on Cassini-the-Microsoft-sample-web-server; maybe this feature was added to the latter after the split.
Would it be hard to add to your product, having the source available?
best regards,
Boris.