by Trevor Clayton
It has been noted that there is a minor issue with the British kerbs in AutoCAD Civil 3D 2012, however, it is easily fixed and thanks to Jack Strongitharm at Autodesk, who has published the instructions.
AutoCAD Civil 3D 2012 - British Kerbs Properties
With the UK and Ireland country kit are some British Standard Kerb, Channel and Edgings in the subassemblies.
However, it is easily fixed in windows explorer.
There are two dll’s stored in this location that we need to move
XP
C:\Documents and Settings\All Users\Autodesk\C3D 2011\enu\Assemblies
Vista / Windows 7
C:\ProgramData\Autodesk\C3D 2012\enu\Assemblies
So create these two folders and cut and paste in the two .dll files and all will work
XP
C:\Documents and Settings\All Users\Autodesk\C3D 2011\enu\Imported Tools\C3DBritishSubassemblies
Vista / Windows 7
C:\ProgramData\Autodesk\C3D 2012\enu\Imported Tools\C3DBritishSubassemblies
Properties of the sub assembly should replicate the image above.