SP 3.0.1 - IIS - Request Mapper failing on long Path Regex

[Cantor, Scott]

> As of the new SP release, the PathRegex appears to fail to establish an SP
> session within IIS, on RegEx string over 20 characters in length.

I have a hard time imagining that changing unless something odd took place on the Xerces side (which is not going to be fixable), but be that as it may, you need to file a bug, not send email.
 
-- Scott