Are you planning on running RSView ME on a PanelView terminal, or on a Windows XP computer ?
Do you have only RSLinx Lite, or do you have RSLinx OEM or better ?
The software you're using to communicate from your PC's RSLogix 500 session, through the 1756-ENBT and 1756-DHRIO modules, to
the SLC-5/04 is called RSLinx Classic.
The software that is configured from inside RSView Studio and provides communication services for RSView ME is called RSLinx Enterprise.
RSLinx Enterprise, as rdrast noted, does not have every bridging and routing feature that RSLinx Classic does. It won't bridge from a Logix backplane through a 1756-DHRIO to a DH+ network. It can communicate to local controllers on the DH+ network using a 1784-PKTX card, but not bridged through a 1756-DHRIO.
You can use RSLinx Classic (OEM or better) as the data server for RSView ME when it's running on a Windows 2000/XP computer.
The PanelView Plus and PanelView Plus/CE terminals won't run RSLinx Classic, so they aren't able to take advantage of that functionality provided by RSLinx Classic.