1. First acquire ivtools, by downloading binaries or building from source.
2. Add the following Mime Types to the appropriate file for your browser:
application/comterp; cms
application/ov-idraw; drs
application/frame-idraw; frs
application/graph-idraw; grs
Mime Types file for common browsers:
3. Add the following helper app command lines to your ~/.mailcap file:
application/comterp; comterp run %s
application/ov-idraw; drawtool %s >& /dev/null
application/frame-idraw; flipbook -bookgeom %s >& /dev/null
application/graph-idraw; graphdraw %s >& /dev/null
4. Restart your browser and try loading this file into ivtools drawtool. If it doesn't work go back to step 2 and make sure you added the Mime Types to the appropriate file for your browser.