One of the useful features of Windows Explorer is the ability to add additional targets to the SendTo list. With windows 7, getting at the Send To directory in Windows 7 need some help. Please see http://www.howtogeek.com/howto/windows-vista/customize-the-windows-vista-send-to-menu/ on how to do this. Once you have the send to directory, just add the shortcut to it. In my case I located the ILDASM utility, created a short cut on the desktop and moved it to the send-to directory.
Now what is ILDASM? ILDASM is useful utility to analyse Dot Net assemblies. Once I had the ILDASM short-cut I was able to send Dot Net assemblies to be analysed.