Completion of stream names on network share?

May 20, 2008
10,634
81
Syracuse, NY, USA
In general, stream names, "drive:\path\file:stream", and "\\host\share\path\file:stream" work as arguments to commands and variable functions. But
Code:
drive:\path\file:<Tab>
works to complete a stream name, while
Code:
\\host\share\path\file:<Tab>
doesn't.

Is this a shortcoming of the API? If not, can the behavior be changed?