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.

1. Create a new configuration variable named MS_RASTER_BINGMAP_KEY and put your Bing Maps Key in the New Value field.
2. Save the new variable, then close MicroStation and open a new session.
3. Open the Raster Manager dialog and then select File > Attach > Bing Maps.     

The Raster Attachments Options dialog opens.

1. Select the desired Bing Maps Layers type and then click Attach.

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

Bing Map usage is subject to Microsoft's Terms of Use https://www.microsoft.com/en-us/maps/product. In particular, there are some restrictions on printing. For details, refer to the web page https://www.microsoft.com/en-us/maps/product/print-rights.

See Also

http://communities.bentley.com/products/geospatial/desktop/f/5924/t/102800