Disable SHIF+DELETE

Sometimes we wonder how to disable Shift+Delete so that even if the key combination is used, the files always get to the Recycle Bin.

Unfortunately there isn't really a way to do this. You can disable it in particular applications, for example there is a registry hack to prevent it in Outlook, however I do not know of any for Windows Explorer.

You could use something like AutoHotKey to map Shift+Delete to Delete.
However, you would need AutoHotKey running all the time for this to work.
The AutoHotKey script to do this is as follows:

+Delete::
KeyWait Shift
Send {Delete} 

But it's not possible to guarantee that files end up in the Recycle Bin.  
Some files are too large. Or a user might delete too many files and a 
file that was recently deleted gets evicted right away.  Technically 
that file went to the Recycle Bin, but for practical purposes it did not.

The TweakUI Powertoy lets you customize certain key-bindings but 
Shift-Delete isn't one of them.