Hi,
I was wondering whether the fact that you couldn’t use visual studio express as an editor (open it when you double click a file in unity) was a technical limitation (not possible) or a legal/license limitation (not allowed), because I have seen apps achieve this with the express editions of visual studio…
I have no problem using Visual C# Express. In the Unity GUI is a menu “Sync VS” (or similar - i am at the moment on an other PC).
The problem is that when you try to select it as your editor, it tells you about a limitation of the express edition.
Anyway, I found a small workaround to this issue and posted it here :
http://www.unifycommunity.com/wiki/index.php?title=Setting_up_Visual_Studio_for_Unity#Using_Visual_C.23_Express_As_the_code_editor
I hope that nothing is ‘bad’ about it, though there is no reason for anything to be.