Well sometimes I need a cmd right from the directory in the explorer within Windows. Microsoft offered the so called MS Powertoys, which have had a feature called command prompt from here. What that does was just a simple registry entry, which added an entry to the folder context menu. If you want to have such an extension you could easily add the following to your registry:
@="Devenv from here"
(Just paste the lines above into a file with a .reg extension and click on it)
Now you could create a file called C:\bin\devenv.cmd and add you favorite Path extensions or variables. After adding the two entries to your registry you will see a new entry when you right click on a folder "Devenv from here".