You can use Bing Maps content as a live raster;
To Attach Bing Maps
Go to Create a Bing Maps key and obtain a Bing Maps Key.
The Raster Attachments Options dialog opens.
Steps to Accomplish
After obtaining the key
Create a new configuration variable named "MS_RASTER_BINGMAP_KEY" and give it the value of your
Bing Maps key. Example, "abcdefGhiJklmnop_qrstuvwXyz".
Save the variable then close and reopen Your Bentley Software
Go to File > Attach > Bing Maps… in the Raster Manager dialog box.
The "Raster Attachments Options" dialog opens.
There are three options to choose from layers
Road: a cartographic type map with roads and place names
Aerial: aerial photography of the earth
Aerial with labels: a hybrid of aerial photography and roads and place names
You could also use the keyins >
raster attach fixed http://www.bing.com/maps/road
raster attach fixed http://www.bing.com/maps/aerial
raster attach fixed http://www.bing.com/maps/aerialwithlabels
Beginning with the MicroStation CONNECT Edition, Update 7 Bing Maps are available as a Background image, which does not require a Bing Maps key.