Please see attached screen shot ‘folder structure 2011_.png’.
In the 2011 version if you drill into a browser folder from a SolidWorks 2011 Toolbox, you'll see that there are only two folder levels and the last contains every single part file in that category. For example, if in Windows Explorer you browse to the Browser->Ansi Inch->Washers folder, within the “Washers” category you see every single washer.
Please see attached screen shot ‘folder structure 2012_.png’.
In the 2012 version we are introducing a third level folder. Now, the folder structure in Windows Explorer (SolidWorks Data > Browser) looks exactly the same as in the Task Pane and Toolbox Settings (Windows Start > All Programs > SolidWorks 2012 > SolidWorks Tools > Toolbox Settings). This change allows the user to edit the Toolbox folder structure and generally to make the portability of toolbox more flexible. It is now possible to cut, rename, copy and paste folders and parts without creating a derived standard.
Additionally in 2012, we are eliminating the dependency of toolbox on the Access database. The data stored in various tables in the database such as sizes, lengths, drive types, part numbers, and properties, will now be stored in each part file.
The benefits gained will include performance improvements when:
• Dragging components from the task pane to the graphics area preview
• Dropping components into the graphics area to finish loading of the Property Manager
• Clicking OK to complete the insert, etc.
Also, please note that part of the process when upgrading Toolbox from 2011 or older versions is to create the missing third level folders and properly move each component from the second level folder where it currently resides to the new third level folder.