Go to the key where VISTA told you then read this thread for more details
Or here is the way
a>click on the start menu and click run.
b>Typr in regedit(inbuilt registry editor of windows) and click ok.
c>go to HKEY_CLASSES_ROOT\Drive .
d>Create a new key here with whatever name u want (Name doesnt matters).
e>In its "default" value type in the name which u want to be displayed.
f>Now create a new key in the key which we created in step "d" and name it as "command".
g>In the dfault value type the path of the program.
Now restart and see the effect , wait i think that no restart is needed