For those of you who have try to have a look at administration pages in SharePoint 2007 to understand how things works, it may not be possible to do the same in SharePoint 2010.
In SharePoint 2007, we used to have the Microsoft.SharePoint.ApplicationPages namespace defined in Microsoft.SharePoint.dll and this assembly was readable from .NET Reflector:
Now, in SharePoint 2010, the administration pages (cf. importranslations.aspx) inherits the Microsoft.SharePoint.ApplicationPages assembly… and guess what, this assembly is not readable from .NET Reflector :
If you have any clue on this, feel free to respond to this post !